JanetTerra Jul 23, 2006
[[#TopOfPage]] ==Source Code LBWF06_template.bas== ===Tomas P Nally [[user:steelweaver52]]=== ---------- Return to [[LBWFCh02|Chapter 2: The Liberty BASIC Wire Frame Library - Version 0.6]] ---------- If you prefer to download the **LBWF06_template.bas**, Click [[file:LBWF06_template.zip]]. ---------- [[code format="vb"]] ''''''''''''''''''''''''''''''''''''''' ' LBWF06_template.bas ' ' ' ' LBWF Library Version 0.6 ' ' ' ''''''''''''''''''''''''''''''''''''''' gosub [Initialize.Liberty.BASIC.WireFrame.Library] NOMAINWIN WindowWidth = 420 : WindowHeight = 450 UpperLeftX = INT((DisplayWidth-WindowWidth)/2) UpperLeftY = INT((DisplayHeight-WindowHeight)/2) graphicbox #main.wfscene, 20, 20, 360, 360 Open "LB Wire Frame Library" for Window as #main print #main, "trapclose [Quit.click]" print #main.wfscene, "down; fill White; flush" print #main.wfscene, "setfocus " print #main, "font ms_sans_serif 10" 'Set the camera location... CamX = 250 CamY = 200 CamZ = 160 AAA = FF.LBWF.CameraLocation(CamX, CamY, CamZ) 'Set the viewing center... VCtrX = 0 VCtrY = 0 VCtrZ = 0 AAA = FF.LBWF.ViewingCenter(VCtrX, VCtrY, VCtrZ) 'Set the zoom factor... ZoomFac = 1.2 AAA = FF.LBWF.ZoomFactor(ZoomFac) 'Set the screen center to the center point of the graphicbox... ScreenCenterX = 180 : ScreenCenterY = 180 AAA = FF.LBWF.ScreenCenter(ScreenCenterX, ScreenCenterY) 'Set a background color for the graphicbox... AAA = FF.LBWF.BackGroundColor("white") 'Show the axes... AAA = FF.LBWF.ShowAxes() 'Create a cylinder object... CylName$ = "cyl1" radius = 20 numSides = 20 cylheight = 50 CylColor$ = "darkgreen" AAA = FF.LBWF.CreateCylinder(CylName$, radius, numSides, cylheight, CylColor$) AAA = FF.LBWF.ClearGraphicScreen() AAA = FF.LBWF.DrawAllObjects() Wait [loop] Wait [Quit.click] close #main : END wait '---Insert library below this line---- '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' Begin Liberty BASIC WireFrame Library ' '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' ''''''''''''''''''''''''''''''''''''''''''''''''''' 'List of Liberty BASIC Wire Frame Library Functions ''''''''''''''''''''''''''''''''''''''''''''''''''' ' 'function count = 52 ' 'Function FF.LBWF.Camera() 'Function FF.LBWF.CameraLocation() 'Function FF.LBWF.ViewingCenter() 'Function FF.LBWF.ZoomFactor() 'Function FF.LBWF.ScreenCenter() 'Function FF.LBWF.PointCameraAtObject() 'Function FF.LBWF.BackGroundColor() 'Function FF.LBWF.ShowAxes() 'Function FF.LBWF.HideAxes() 'Function FF.LBWF.SetAxesProperties() ' 'Function FF.LBWF.CreateBox() 'Function FF.LBWF.CreateCylinder() 'Function FF.LBWF.CreatePyramid() 'Function FF.LBWF.CreateCone() 'Function FF.LBWF.CreatePolygon() 'Function FF.LBWF.CreateGridObject() 'Function FF.LBWF.CreateDome() 'Function FF.LBWF.CreateLine() 'Function FF.LBWF.CreateCyl2() ' 'Function FF.LBWF.TranslateObject() 'Function FF.LBWF.HideObject() 'Function FF.LBWF.ShowObject() 'Function FF.LBWF.ObjectSetColor() 'Function FF.LBWF.ObjectSetLineThickness() 'Function FF.LBWF.MoveObjectAbsolute() 'Function FF.LBWF.RotateObjectAboutY() 'Function FF.LBWF.RotateObjectAboutX() 'Function FF.LBWF.RotateObjectAboutZ() ' 'Function FF.LBWF.HideObjectsOfType() 'Function FF.LBWF.ShowObjectsOfType() 'Function FF.LBWF.TranslateObjectsOfType() 'Function FF.LBWF.DrawObjectsOfType() 'Function FF.LBWF.ObjectAssignCustomType() ' ' 'Function FF.LBWF.HideAllObjects() 'Function FF.LBWF.ShowAllObjects() ' 'Function FF.LBWF.ClearGraphicScreen() 'Function FF.LBWF.DrawObject() 'Function FF.LBWF.DrawAllObjects() ' 'Function FF.LBWF.LBWFVersion$() 'Function FF.LBWF.About() 'Function FF.LBWF.PauseMilliseconds() 'Function FF.LBWF.PauseUsingTimer() 'Function FF.LBWF.ZeroAllData() ' 'Function FF.LBWF.RequestLibraryResources$() 'Function FF.LBWF.RequestRemainingResources$() 'Function FF.LBWF.RequestObjectGeometricCenter$() 'Function FF.LBWF.RequestObjectColor$() 'Function FF.LBWF.RequestObjectLineThickness() 'Function FF.LBWF.RequestObjectType$() 'Function FF.LBWF.RequestObjectExtents$() 'Function FF.LBWF.RequestObjectVisibleState() ' ' 'Function FF.LBWF.ATAN2() ' ' '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' [Initialize.Liberty.BASIC.WireFrame.Library] dim LBWF.CamX(1) dim LBWF.CamY(1) dim LBWF.CamZ(1) dim LBWF.VCtrX(1) dim LBWF.VCtrY(1) dim LBWF.VCtrZ(1) dim LBWF.ZoomFac(1) dim LBWF.BackGroundColor$(1) dim LBWF.VersionNumber$(1) dim LBWF.NodeResources(1) dim LBWF.LineResources(1) dim LBWF.ObjectResources(1) LBWF.CamX(1) = 200 LBWF.CamY(1) = 200 LBWF.CamZ(1) = 200 LBWF.VCtrX(1) = 0 LBWF.VCtrY(1) = 0 LBWF.VCtrZ(1) = 0 LBWF.ZoomFac(1) = 1 LBWF.BackGroundColor$(1) = "white" LBWF.VersionNumber$(1) = "0.6a" LBWF.NodeResources(1) = 4000 LBWF.LineResources(1) = 4000 LBWF.ObjectResources(1) = 500 dim LBWF.ScrCenterX(1) dim LBWF.ScrCenterY(1) LBWF.ScrCenterX(1) = 180 LBWF.ScrCenterY(1) = 180 dim LBWF.NodeCount(1) dim LBWF.LineCount(1) dim LBWF.ObjectCount(1) LBWF.NodeCount(1) = 0 LBWF.LineCount(1) = 0 LBWF.ObjectCount(1) = 0 dim LBWF.NodeWX(LBWF.NodeResources(1)) dim LBWF.NodeWY(LBWF.NodeResources(1)) dim LBWF.NodeWZ(LBWF.NodeResources(1)) dim LBWF.NodeSX(LBWF.NodeResources(1)) dim LBWF.NodeSY(LBWF.NodeResources(1)) dim LBWF.LineInode(LBWF.LineResources(1)) dim LBWF.LineJnode(LBWF.LineResources(1)) dim LBWF.ObjectName$(LBWF.ObjectResources(1)) dim LBWF.ObjectColor$(LBWF.ObjectResources(1)) dim LBWF.ObjectFirstNode(LBWF.ObjectResources(1)) dim LBWF.ObjectLastNode(LBWF.ObjectResources(1)) dim LBWF.ObjectFirstLine(LBWF.ObjectResources(1)) dim LBWF.ObjectLastLine(LBWF.ObjectResources(1)) dim LBWF.ObjectVisible(LBWF.ObjectResources(1)) dim LBWF.ObjectLineThickness(LBWF.ObjectResources(1)) dim LBWF.ObjectType$(LBWF.ObjectResources(1)) dim LBWF.ObjectCenterX(LBWF.ObjectResources(1)) dim LBWF.ObjectCenterY(LBWF.ObjectResources(1)) dim LBWF.ObjectCenterZ(LBWF.ObjectResources(1)) 'Information about the axes... Dim LBWF.AxesVisible(1) LBWF.AxesVisible(1) = 0 'Default state: axes are NOT visible Dim LBWF.AxesLength(1) LBWF.AxesLength(1) = 50 'The startup length of the axes are 30 units Dim LBWF.AxesLineThickness(1) LBWF.AxesLineThickness(1) = 2 'The startup thickness of the axes objects is 2 pixels Dim LBWF.XaxisColor$(1) Dim LBWF.YaxisColor$(1) Dim LBWF.ZaxisColor$(1) LBWF.XaxisColor$(1) = "blue" LBWF.YaxisColor$(1) = "red" LBWF.ZaxisColor$(1) = "darkgreen" Dim LBWF.AxesWorldX(4) Dim LBWF.AxesWorldY(4) Dim LBWF.AxesWorldZ(4) Dim LBWF.AxesScreenX(4) Dim LBWF.AxesScreenY(4) LBWF.AxesWorldX(1) = 0 'These are the world coordinates of LBWF.AxesWorldY(1) = 0 'the origin point. LBWF.AxesWorldZ(1) = 0 ' LBWF.AxesWorldX(2) = LBWF.AxesLength(1) 'These are the coordinates of the end LBWF.AxesWorldY(2) = 0 'end point of the X-axis LBWF.AxesWorldZ(2) = 0 ' LBWF.AxesWorldX(3) = 0 'These are the coordinates of the LBWF.AxesWorldY(3) = LBWF.AxesLength(1) 'endpoint of the Y-axis LBWF.AxesWorldZ(3) = 0 LBWF.AxesWorldX(4) = 0 'These are the coordinates of the LBWF.AxesWorldY(4) = 0 'endpoint of the Z-axis LBWF.AxesWorldZ(4) = LBWF.AxesLength(1) ' Return '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ZeroAllData() LBWF.CamX(1) = 200 LBWF.CamY(1) = 200 LBWF.CamZ(1) = 200 LBWF.VCtrX(1) = 0 LBWF.VCtrY(1) = 0 LBWF.VCtrZ(1) = 0 LBWF.ZoomFac(1) = 1 LBWF.BackGroundColor$(1) = "white" LBWF.VersionNumber$(1) = "0.6a" LBWF.NodeResources(1) = 4000 LBWF.LineResources(1) = 4000 LBWF.ObjectResources(1) = 500 LBWF.ScrCenterX(1) = 180 LBWF.ScrCenterY(1) = 180 LBWF.NodeCount(1) = 0 LBWF.LineCount(1) = 0 LBWF.ObjectCount(1) = 0 LBWF.AxesVisible(1) = 0 'Default state: axes are NOT visible LBWF.AxesLength(1) = 50 'The startup length of the axes are 30 units LBWF.AxesLineThickness(1) = 2 'The startup thickness of the axes objects is 2 pixels LBWF.XaxisColor$(1) = "blue" LBWF.YaxisColor$(1) = "red" LBWF.ZaxisColor$(1) = "darkgreen" LBWF.AxesWorldX(1) = 0 'These are the world coordinates of LBWF.AxesWorldY(1) = 0 'the origin point. LBWF.AxesWorldZ(1) = 0 ' LBWF.AxesWorldX(2) = LBWF.AxesLength(1) 'These are the coordinates of the end LBWF.AxesWorldY(2) = 0 'end point of the X-axis LBWF.AxesWorldZ(2) = 0 ' LBWF.AxesWorldX(3) = 0 'These are the coordinates of the LBWF.AxesWorldY(3) = LBWF.AxesLength(1) 'endpoint of the Y-axis LBWF.AxesWorldZ(3) = 0 LBWF.AxesWorldX(4) = 0 'These are the coordinates of the LBWF.AxesWorldY(4) = 0 'endpoint of the Z-axis LBWF.AxesWorldZ(4) = LBWF.AxesLength(1) ' End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ObjectAssignCustomType(ObjectName$, CustomType$) ObjectToType = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToType = i i = LBWF.ObjectCount(1) end if next i LBWF.ObjectType$(ObjectToType) = CustomType$ End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.HideObjectsOfType(ObjectType$) 'In version 0.6 of the library, this function presumes 'that the programmer has passed a legitimate type 'as an argument in the function. 'Examine the types of all current objects. 'If an object's type matches the type identified 'in the argument of the function, then set the visibility 'of that object to "hidden" OC = LBWF.ObjectCount(1) for i = 1 to OC if (LBWF.ObjectType$(i) = ObjectType$) then LBWF.ObjectVisible(i) = 0 end if next i End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ShowObjectsOfType(ObjectType$) OC = LBWF.ObjectCount(1) for i = 1 to OC if (LBWF.ObjectType$(i) = ObjectType$) then LBWF.ObjectVisible(i) = 1 end if next i End function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.TranslateObjectsOfType(ObjectType$, transX, transY, transZ) OC = LBWF.ObjectCount(1) for i = 1 to OC if (LBWF.ObjectType$(i) = ObjectType$) then FirstNode = LBWF.ObjectFirstNode(i) LastNode = LBWF.ObjectLastNode(i) for j = FirstNode to LastNode LBWF.NodeWX(j) = LBWF.NodeWX(j) + transX LBWF.NodeWY(j) = LBWF.NodeWY(j) + transY LBWF.NodeWZ(j) = LBWF.NodeWZ(j) + transZ next j LBWF.ObjectCenterX(i) = LBWF.ObjectCenterX(i) + transX LBWF.ObjectCenterY(i) = LBWF.ObjectCenterY(i) + transY LBWF.ObjectCenterZ(i) = LBWF.ObjectCenterZ(i) + transZ end if next i End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 'dim LBWF.ObjectCenterX(i) 'dim LBWF.ObjectCenterY(i) 'dim LBWF.ObjectCenterZ(i) 'dim LBWF.NodeWX(i) 'dim LBWF.NodeWY(i) 'dim LBWF.NodeWZ(i) 'dim LBWF.ObjectFirstNode(i) 'dim LBWF.ObjectLastNode(i) 'dim LBWF.ObjectVisible(LBWF.ObjectResources(1)) 'dim LBWF.ObjectLineThickness(LBWF.ObjectResources(1)) 'dim LBWF.ObjectType$(LBWF.ObjectResources(1)) '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateLine(LineName$, x1, y1, z1, x2, y2, z2, LineColor$) NC = LBWF.NodeCount(1) LC = LBWF.LineCount(1) 'Identify the two new nodes... LBWF.NodeWX(NC + 1) = x1 LBWF.NodeWY(NC + 1) = y1 LBWF.NodeWZ(NC + 1) = z1 LBWF.NodeWX(NC + 2) = x2 LBWF.NodeWY(NC + 2) = y2 LBWF.NodeWZ(NC + 2) = z2 'Identify the one new line... LBWF.LineInode(LC + 1) = (NC + 1) LBWF.LineJnode(LC + 1) = (NC + 2) 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = LineName$ LBWF.ObjectColor$(OC + 1) = LineColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + 2) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 1) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "line" LBWF.ObjectCenterX(OC + 1) = (x1 + x2)/2 LBWF.ObjectCenterY(OC + 1) = (y1 + y2)/2 LBWF.ObjectCenterZ(OC + 1) = (z1 + z2)/2 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + 2 LBWF.LineCount(1) = LBWF.LineCount(1) + 1 LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateDome(DomeName$, radius, numSides, DomeColor$) 'Define the new nodes for this dome... NC = LBWF.NodeCount(1) pi = 3.14159 wedgeAngle = (2*pi)/numSides NNDN = 3*numSides + 1 'Number of new dome nodes NNDL = 6*numSides 'Number of new dome lines 'Find the coordinates of all the nodes on the base 'layer of the dome... for i = 1 to numSides LBWF.NodeWX(NC + i) = radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = radius*sin((i-1)*wedgeAngle) next i 'Find the coordinates of all the nodes on the SECOND 'layer of the dome. NC1 = NC + numSides for i = 1 to numSides LBWF.NodeWX(NC1 + i) = 0.866*radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC1 + i) = 0.5*radius LBWF.NodeWZ(NC1 + i) = 0.866*radius*sin((i-1)*wedgeAngle) next i 'Find the coordinates of all the nodes on the THIRD 'layer of the dome. NC2 = NC1 + numSides for i = 1 to numSides LBWF.NodeWX(NC2 + i) = 0.500*radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC2 + i) = 0.866*radius LBWF.NodeWZ(NC2 + i) = 0.500*radius*sin((i-1)*wedgeAngle) next i 'Identify the coordinate of the top-most node of the dome... LBWF.NodeWX(NC + 3*numSides + 1) = 0 LBWF.NodeWY(NC + 3*numSides + 1) = radius LBWF.NodeWZ(NC + 3*numSides + 1) = 0 'Define the new lines for this dome... LC = LBWF.LineCount(1) 'These are the lines for the base layer of the dome... for i = 1 to (numSides - 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + i + 1) next i LBWF.LineInode(LC + numSides) = (NC + numSides) LBWF.LineJnode(LC + numSides) = (NC + 1) 'These are the lines which connect the SECOND 'layer of nodes... LC1 = LC + numSides NC1 = NC + numSides for i = 1 to (numSides - 1) LBWF.LineInode(LC1 + i) = (NC1 + i) LBWF.LineJnode(LC1 + i) = (NC1 + i + 1) next i LBWF.LineInode(LC1 + numSides) = (NC1 + numSides) LBWF.LineJnode(LC1 + numSides) = (NC1 + 1) 'These are the lines which connect the THIRD 'layer of nodes... LC2 = LC1 + numSides NC2 = NC1 + numSides for i = 1 to (numSides - 1) LBWF.LineInode(LC2 + i) = (NC2 + i) LBWF.LineJnode(LC2 + i) = (NC2 + i + 1) next i LBWF.LineInode(LC2 + numSides) = (NC2 + numSides) LBWF.LineJnode(LC2 + numSides) = (NC2 + 1) 'These are the lines which connect the BASE layer 'of nodes to the SECOND layer of nodes... LC3 = LC2 + numSides for i = 1 to numSides LBWF.LineInode(LC3 + i) = (NC + i) LBWF.LineJnode(LC3 + i) = (NC1 + i) next i 'These are the lines which connect the SECOND layer 'of nodes to the THIRD layer of nodes... LC4 = LC3 + numSides for i = 1 to numSides LBWF.LineInode(LC4 + i) = (NC1 + i) LBWF.LineJnode(LC4 + i) = (NC2 + i) next i 'These are the lines which connect the THIRD layer 'of nodes to the TOP-MOST node... LC5 = LC4 + numSides for i = 1 to numSides LBWF.LineInode(LC5 + i) = (NC2 + i) LBWF.LineJnode(LC5 + i) = (NC + NNDN) 'NNDN is the last node of the dome... next i 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = DomeName$ LBWF.ObjectColor$(OC + 1) = DomeColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + NNDN) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + NNDL) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "dome" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = radius/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + NNDN LBWF.LineCount(1) = LBWF.LineCount(1) + NNDL LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 end function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.PauseUsingTimer(DelayMS) Timer DelayMS, [End.Of.Delay] Wait [End.Of.Delay] Timer 0 End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.PauseMilliseconds(DelayMS) StartingTimeMS = time$("ms") ElapsedTimeMS = 0 While (ElapsedTimeMS <= DelayMS) 'Keep checking the elapsed time until the 'elapsed time is greater than the delay time 'as contained in the variable DelayMS CurrentTimeMS = time$("ms") ElapsedTimeMS = CurrentTimeMS - StartingTimeMS Wend End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.About() Notice "Liberty BASIC Wireframe Library " + chr$(13) + _ " " + chr$(13) + _ "Library Version " + LBWF.VersionNumber$(1) + chr$(13) + _ " " + chr$(13) + _ "by Tomas J. Nally " end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.LBWFVersion$() FF.LBWF.LBWFVersion$ = LBWF.VersionNumber$(1) end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ObjectSetColor(ObjectName$, NewColor$) 'Determine the object whose color will 'change by comparing the name of the object 'against a list of all object names... ObjectToChangeColor = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToChangeColor = i i = LBWF.ObjectCount(1) end if next i 'Now that the object has been identified, 'change its color property... LBWF.ObjectColor$(ObjectToChangeColor) = NewColor$ end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ObjectSetLineThickness(ObjectName$, LineThickness) 'Determine the object whose line thickness will 'change by comparing the name of the object 'against a list of all object names... ObjectToChange = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToChange = i i = LBWF.ObjectCount(1) end if next i 'Now that the object has been identified, 'change its line thickness property... LBWF.ObjectLineThickness(ObjectToChange) = LineThickness end Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.SetAxesProperties(AxesLength, AxesThickness) LBWF.AxesLength(1) = AxesLength LBWF.AxesWorldX(2) = LBWF.AxesLength(1) LBWF.AxesWorldY(3) = LBWF.AxesLength(1) LBWF.AxesWorldZ(4) = LBWF.AxesLength(1) LBWF.AxesLineThickness(1) = AxesThickness end Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ShowAxes() LBWF.AxesVisible(1) = 1 End function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.HideAxes() LBWF.AxesVisible(1) = 0 End function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ShowObject(ObjectName$) 'Determine the object to be hidden by comparing the name 'argument against a list of object names... ObjectToShow = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToShow = i i = LBWF.ObjectCount(1) end if next i 'Set the visible property of that object to 1... LBWF.ObjectVisible(ObjectToShow) = 1 end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.HideObject(ObjectName$) 'Determine the object to be hidden by comparing the name 'argument against a list of object names... ObjectToHide = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToHide = i i = LBWF.ObjectCount(1) end if next i 'Set the visible property of that object to zero... LBWF.ObjectVisible(ObjectToHide) = 0 end Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.PointCameraAtObject(ObjectName$) 'Find the geometric center of the object identified 'as the argument above... ObjectCenter$ = FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) ObjectCenterX = val(word$(ObjectCenter$, 1)) ObjectCenterY = val(word$(ObjectCenter$, 2)) ObjectCenterZ = val(word$(ObjectCenter$, 3)) 'Now, point the camera to the x, y and z coordinates 'identified above... AAA = FF.LBWF.ViewingCenter(ObjectCenterX, ObjectCenterY, ObjectCenterZ) End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateGridObject(GridName$, NumUnitsXdirection, NumUnitsZdirection, UnitSize, GridColor$) NumGridNodes = 2*(NumUnitsXdirection + 1) + 2*(NumUnitsZdirection + 1) NumGridLines = (NumUnitsXdirection + 1) + (NumUnitsZdirection + 1) TotalGridLengthX = NumUnitsXdirection * UnitSize TotalGridWidthZ = NumUnitsZdirection * UnitSize UpperLeftCornerX = (0 - TotalGridLengthX/2) UpperLeftCornerZ = (0 - TotalGridWidthZ/2) LowerRightCornerX = TotalGridLengthX/2 LowerRightCornerZ = TotalGridWidthZ/2 NC = LBWF.NodeCount(1) LC = LBWF.LineCount(1) 'Define all of the nodes which connect the lines parallel to 'the z-axis... for i = 1 to (NumUnitsXdirection + 1) LBWF.NodeWX(NC + i) = UpperLeftCornerX + (i-1)*UnitSize LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = UpperLeftCornerZ next i Na = NC + NumUnitsXdirection + 1 for i = 1 to (NumUnitsXdirection + 1) LBWF.NodeWX(Na + i) = UpperLeftCornerX + (i-1)*UnitSize LBWF.NodeWY(Na + i) = 0 LBWF.NodeWZ(Na + i) = LowerRightCornerZ next i 'Define all of the nodes which connect the lines parallel to 'the x-axis... Nb = NC + 2*(NumUnitsXdirection + 1) for i = 1 to (NumUnitsZdirection + 1) LBWF.NodeWX(Nb + i) = UpperLeftCornerX LBWF.NodeWY(Nb + i) = 0 LBWF.NodeWZ(Nb + i) = UpperLeftCornerZ + (i-1)*UnitSize next i Nd = NC + 2*(NumUnitsXdirection + 1) + (NumUnitsZdirection + 1) for i = 1 to (NumUnitsZdirection + 1) LBWF.NodeWX(Nd + i) = LowerRightCornerX LBWF.NodeWY(Nd + i) = 0 LBWF.NodeWZ(Nd + i) = UpperLeftCornerZ + (i-1)*UnitSize next i 'Define the i-nodes and j-nodes for the (NumUnitsXdirection + 1) lines 'that run parallel to the z-axis... for i = 1 to (NumUnitsXdirection + 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + (NumUnitsXdirection + 1) + i) next i 'Define the i-nodes and j-nodes for the (NumUnitsZdirection + 1) lines 'that run parallel to the x-axis... LCa = LC + (NumUnitsXdirection + 1) for i = 1 to (NumUnitsZdirection + 1) LBWF.LineInode(LCa + i) = (NC + 2*(NumUnitsXdirection + 1) + i) LBWF.LineJnode(LCa + i) = LBWF.LineInode(LCa + i) + (NumUnitsZdirection + 1) next i 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = GridName$ LBWF.ObjectColor$(OC + 1) = GridColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + NumGridNodes) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + NumGridLines) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "grid" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = 0 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + NumGridNodes LBWF.LineCount(1) = LBWF.LineCount(1) + NumGridLines LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateCone(ConeName$, radius, numSides, coneheight, ConeColor$) 'Define the new nodes for this cone... NC = LBWF.NodeCount(1) pi = 3.14159 wedgeAngle = (2*pi)/numSides for i = 1 to numSides LBWF.NodeWX(NC + i) = radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = radius*sin((i-1)*wedgeAngle) next i LBWF.NodeWX(NC + numSides + 1) = 0 LBWF.NodeWY(NC + numSides + 1) = coneheight LBWF.NodeWZ(NC + numSides + 1) = 0 'Define the new lines for this cone... LC = LBWF.LineCount(1) 'These are the new lines for the bottom face of the cone... for i = 1 to (numSides - 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + i + 1) next i LBWF.LineInode(LC + numSides) = (NC + numSides) LBWF.LineJnode(LC + numSides) = (NC + 1) 'These are the lines for the sides of the cone which 'go from the base up to the peak of the cone... for i = 1 to numSides LBWF.LineInode(LC + numSides + i) = (NC + i) LBWF.LineJnode(LC + numSides + i) = (NC + numSides + 1) next i 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = ConeName$ LBWF.ObjectColor$(OC + 1) = ConeColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + numSides + 1) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 2*numSides) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "cone" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = coneheight/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + numSides + 1 LBWF.LineCount(1) = LBWF.LineCount(1) + 2*numSides LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 End Function '''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreatePyramid(pyrName$, xdim, zdim, pyrheight, pyrColor$) 'Define the 5 new nodes for this pyramid... NC = LBWF.NodeCount(1) LBWF.NodeWX(NC + 1) = xdim/2 : LBWF.NodeWY(NC + 1) = 0 : LBWF.NodeWZ(NC + 1) = (-1)*zdim/2 LBWF.NodeWX(NC + 2) = xdim/2 : LBWF.NodeWY(NC + 2) = 0 : LBWF.NodeWZ(NC + 2) = zdim/2 LBWF.NodeWX(NC + 3) = (-1)*xdim/2 : LBWF.NodeWY(NC + 3) = 0 : LBWF.NodeWZ(NC + 3) = zdim/2 LBWF.NodeWX(NC + 4) = (-1)*xdim/2 : LBWF.NodeWY(NC + 4) = 0 : LBWF.NodeWZ(NC + 4) = (-1)*zdim/2 LBWF.NodeWX(NC + 5) = 0 LBWF.NodeWY(NC + 5) = pyrheight LBWF.NodeWZ(NC + 5) = 0 'Define the 8 new lines for this pyramid... LC = LBWF.LineCount(1) LBWF.LineInode(LC + 1) = (NC + 1) : LBWF.LineJnode(LC + 1) = (NC + 2) LBWF.LineInode(LC + 2) = (NC + 2) : LBWF.LineJnode(LC + 2) = (NC + 3) LBWF.LineInode(LC + 3) = (NC + 3) : LBWF.LineJnode(LC + 3) = (NC + 4) LBWF.LineInode(LC + 4) = (NC + 4) : LBWF.LineJnode(LC + 4) = (NC + 1) LBWF.LineInode(LC + 5) = (NC + 1) : LBWF.LineJnode(LC + 5) = (NC + 5) LBWF.LineInode(LC + 6) = (NC + 2) : LBWF.LineJnode(LC + 6) = (NC + 5) LBWF.LineInode(LC + 7) = (NC + 3) : LBWF.LineJnode(LC + 7) = (NC + 5) LBWF.LineInode(LC + 8) = (NC + 4) : LBWF.LineJnode(LC + 8) = (NC + 5) 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = pyrName$ LBWF.ObjectColor$(OC + 1) = pyrColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + 5) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 8) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "pyramid" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = pyrheight/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + 5 LBWF.LineCount(1) = LBWF.LineCount(1) + 8 LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 end Function '''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.TranslateObject(ObjectName$, transX, transY, transZ) 'Determine the object to be translated by comparing the name 'argument against a list of object names... ObjectToTranslate = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToTranslate = i i = LBWF.ObjectCount(1) end if next i FirstNodeToMove = LBWF.ObjectFirstNode(ObjectToTranslate) LastNodeToMove = LBWF.ObjectLastNode(ObjectToTranslate) for i = FirstNodeToMove to LastNodeToMove LBWF.NodeWX(i) = LBWF.NodeWX(i) + transX LBWF.NodeWY(i) = LBWF.NodeWY(i) + transY LBWF.NodeWZ(i) = LBWF.NodeWZ(i) + transZ next i 'As of Library Version 0.6, the array variables 'which hold the values of the geometric center 'of the object must be adjusted also LBWF.ObjectCenterX(ObjectToTranslate) = LBWF.ObjectCenterX(ObjectToTranslate) + transX LBWF.ObjectCenterY(ObjectToTranslate) = LBWF.ObjectCenterY(ObjectToTranslate) + transY LBWF.ObjectCenterZ(ObjectToTranslate) = LBWF.ObjectCenterZ(ObjectToTranslate) + transZ end Function '''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreatePolygon(PolyName$, radius, numSides, PolyColor$) 'Define the new nodes for this polygon... NC = LBWF.NodeCount(1) pi = 3.14159 wedgeAngle = (2*pi)/numSides for i = 1 to numSides LBWF.NodeWX(NC + i) = radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = radius*sin((i-1)*wedgeAngle) next i 'Define the lines for this polygon... LC = LBWF.LineCount(1) for i = 1 to (numSides - 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + i + 1) next i LBWF.LineInode(LC + numSides) = (NC + numSides) LBWF.LineJnode(LC + numSides) = (NC + 1) 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = PolyName$ LBWF.ObjectColor$(OC + 1) = PolyColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + numSides) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + numSides) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "polygon" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = 0 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + numSides LBWF.LineCount(1) = LBWF.LineCount(1) + numSides LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 end Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateCyl2(Cyl2Name$, radiusBottum, radiusTop, numSides, cyl2height, Cyl2Color$) 'Define the new nodes for this cyl2... NC = LBWF.NodeCount(1) pi = 3.14159 wedgeAngle = (2*pi)/numSides for i = 1 to numSides LBWF.NodeWX(NC + i) = radiusBottum*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = radiusBottum*sin((i-1)*wedgeAngle) next i for i = 1 to numSides LBWF.NodeWX(NC + numSides + i) = radiusTop*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + numSides + i) = cyl2height LBWF.NodeWZ(NC + numSides + i) = radiusTop*sin((i-1)*wedgeAngle) next i 'Define the new lines for this cyl2... LC = LBWF.LineCount(1) 'These are the new lines for the bottom face of the cyl2... for i = 1 to (numSides - 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + i + 1) next i LBWF.LineInode(LC + numSides) = (NC + numSides) LBWF.LineJnode(LC + numSides) = (NC + 1) 'These are the new lines for the top face of the cyl2... for i = 1 to (numSides - 1) LBWF.LineInode(LC + numSides + i) = (NC + numSides + i) LBWF.LineJnode(LC + numSides + i) = (NC + numSides + i + 1) next i LBWF.LineInode(LC + 2*numSides) = (NC + 2*numSides) LBWF.LineJnode(LC + 2*numSides) = (NC + numSides + 1) 'These are the side lines of the cyl2... for i = 1 to numSides LBWF.LineInode(LC + 2*numSides + i) = (NC + i) LBWF.LineJnode(LC + 2*numSides + i) = (NC + numSides + i) next i 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = Cyl2Name$ LBWF.ObjectColor$(OC + 1) = Cyl2Color$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + 2*numSides) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 3*numSides) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "cyl2" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = cyl2height/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + 2*numSides LBWF.LineCount(1) = LBWF.LineCount(1) + 3*numSides LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 End Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateCylinder(ObjectName$, radius, numSides, cylheight, ObjectColor$) 'Define the new nodes for this cylinder... NC = LBWF.NodeCount(1) pi = 3.14159 wedgeAngle = (2*pi)/numSides for i = 1 to numSides LBWF.NodeWX(NC + i) = radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + i) = 0 LBWF.NodeWZ(NC + i) = radius*sin((i-1)*wedgeAngle) next i for i = 1 to numSides LBWF.NodeWX(NC + numSides + i) = radius*cos((i-1)*wedgeAngle) LBWF.NodeWY(NC + numSides + i) = cylheight LBWF.NodeWZ(NC + numSides + i) = radius*sin((i-1)*wedgeAngle) next i 'Define the new lines for this cylinder... LC = LBWF.LineCount(1) 'These are the new lines for the bottom face of the cylinder... for i = 1 to (numSides - 1) LBWF.LineInode(LC + i) = (NC + i) LBWF.LineJnode(LC + i) = (NC + i + 1) next i LBWF.LineInode(LC + numSides) = (NC + numSides) LBWF.LineJnode(LC + numSides) = (NC + 1) 'These are the new lines for the top face of the cylinder... for i = 1 to (numSides - 1) LBWF.LineInode(LC + numSides + i) = (NC + numSides + i) LBWF.LineJnode(LC + numSides + i) = (NC + numSides + i + 1) next i LBWF.LineInode(LC + 2*numSides) = (NC + 2*numSides) LBWF.LineJnode(LC + 2*numSides) = (NC + numSides + 1) 'These are the side lines of the cylinder... for i = 1 to numSides LBWF.LineInode(LC + 2*numSides + i) = (NC + i) LBWF.LineJnode(LC + 2*numSides + i) = (NC + numSides + i) next i 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = ObjectName$ LBWF.ObjectColor$(OC + 1) = ObjectColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + 2*numSides) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 3*numSides) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "cylinder" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = cylheight/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + 2*numSides LBWF.LineCount(1) = LBWF.LineCount(1) + 3*numSides LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 end Function '''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CreateBox(ObjectName$, xdim, zdim, boxheight, ObjectColor$) 'Define the 8 new nodes for this box... NC = LBWF.NodeCount(1) BH = boxheight LBWF.NodeWX(NC + 1) = xdim/2 : LBWF.NodeWY(NC + 1) = 0 : LBWF.NodeWZ(NC + 1) = (-1)*zdim/2 LBWF.NodeWX(NC + 2) = xdim/2 : LBWF.NodeWY(NC + 2) = 0 : LBWF.NodeWZ(NC + 2) = zdim/2 LBWF.NodeWX(NC + 3) = (-1)*xdim/2 : LBWF.NodeWY(NC + 3) = 0 : LBWF.NodeWZ(NC + 3) = zdim/2 LBWF.NodeWX(NC + 4) = (-1)*xdim/2 : LBWF.NodeWY(NC + 4) = 0 : LBWF.NodeWZ(NC + 4) = (-1)*zdim/2 LBWF.NodeWX(NC + 5) = xdim/2 : LBWF.NodeWY(NC + 5) = BH : LBWF.NodeWZ(NC + 5) = (-1)*zdim/2 LBWF.NodeWX(NC + 6) = xdim/2 : LBWF.NodeWY(NC + 6) = BH : LBWF.NodeWZ(NC + 6) = zdim/2 LBWF.NodeWX(NC + 7) = (-1)*xdim/2 : LBWF.NodeWY(NC + 7) = BH : LBWF.NodeWZ(NC + 7) = zdim/2 LBWF.NodeWX(NC + 8) = (-1)*xdim/2 : LBWF.NodeWY(NC + 8) = BH : LBWF.NodeWZ(NC + 8) = (-1)*zdim/2 'Define 12 new lines for this box... LC = LBWF.LineCount(1) LBWF.LineInode(LC + 1) = (NC + 1) : LBWF.LineJnode(LC + 1) = (NC + 2) LBWF.LineInode(LC + 2) = (NC + 2) : LBWF.LineJnode(LC + 2) = (NC + 3) LBWF.LineInode(LC + 3) = (NC + 3) : LBWF.LineJnode(LC + 3) = (NC + 4) LBWF.LineInode(LC + 4) = (NC + 4) : LBWF.LineJnode(LC + 4) = (NC + 1) LBWF.LineInode(LC + 5) = (NC + 1) : LBWF.LineJnode(LC + 5) = (NC + 5) LBWF.LineInode(LC + 6) = (NC + 2) : LBWF.LineJnode(LC + 6) = (NC + 6) LBWF.LineInode(LC + 7) = (NC + 3) : LBWF.LineJnode(LC + 7) = (NC + 7) LBWF.LineInode(LC + 8) = (NC + 4) : LBWF.LineJnode(LC + 8) = (NC + 8) LBWF.LineInode(LC + 9) = (NC + 5) : LBWF.LineJnode(LC + 9) = (NC + 6) LBWF.LineInode(LC + 10) = (NC + 6) : LBWF.LineJnode(LC + 10) = (NC + 7) LBWF.LineInode(LC + 11) = (NC + 7) : LBWF.LineJnode(LC + 11) = (NC + 8) LBWF.LineInode(LC + 12) = (NC + 8) : LBWF.LineJnode(LC + 12) = (NC + 5) 'Define other object properties OC = LBWF.ObjectCount(1) LBWF.ObjectName$(OC + 1) = ObjectName$ LBWF.ObjectColor$(OC + 1) = ObjectColor$ LBWF.ObjectFirstNode(OC + 1) = (NC + 1) LBWF.ObjectLastNode(OC + 1) = (NC + 8) LBWF.ObjectFirstLine(OC + 1) = (LC + 1) LBWF.ObjectLastLine(OC + 1) = (LC + 12) LBWF.ObjectVisible(OC + 1) = 1 LBWF.ObjectLineThickness(OC + 1) = 1 LBWF.ObjectType$(OC + 1) = "box" LBWF.ObjectCenterX(OC + 1) = 0 LBWF.ObjectCenterY(OC + 1) = boxheight/2 LBWF.ObjectCenterZ(OC + 1) = 0 'Update the node count, the line count, and the object count... LBWF.NodeCount(1) = LBWF.NodeCount(1) + 8 LBWF.LineCount(1) = LBWF.LineCount(1) + 12 LBWF.ObjectCount(1) = LBWF.ObjectCount(1) + 1 FF.LBWF.CreateBox = 0 end function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.CameraLocation(CamX, CamY, CamZ) LBWF.CamX(1) = CamX LBWF.CamY(1) = CamY LBWF.CamZ(1) = CamZ End Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ViewingCenter(VCtrX, VCtrY, VCtrZ) LBWF.VCtrX(1) = VCtrX LBWF.VCtrY(1) = VCtrY LBWF.VCtrZ(1) = VCtrZ End Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ZoomFactor(ZoomFac) LBWF.ZoomFac(1) = ZoomFac End Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.Camera(CamX, CamY, CamZ, VCtrX, VCtrY, VCtrZ, ZoomFac) LBWF.CamX(1) = CamX LBWF.CamY(1) = CamY LBWF.CamZ(1) = CamZ LBWF.VCtrX(1) = VCtrX LBWF.VCtrY(1) = VCtrY LBWF.VCtrZ(1) = VCtrZ LBWF.ZoomFac(1) = ZoomFac end Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ScreenCenter(ScrCenterX, ScrCenterY) LBWF.ScrCenterX(1) = ScrCenterX LBWF.ScrCenterY(1) = ScrCenterY end Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.BackGroundColor(BGColor$) LBWF.BackGroundColor$(1) = BGColor$ end Function ''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ClearGraphicScreen() print #main.wfscene, "cls" print #main.wfscene, "fill "; LBWF.BackGroundColor$(1) end Function '''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.DrawObjectsOfType(ObjectType$) OC = LBWF.ObjectCount(1) for q = 1 to OC if (LBWF.ObjectType$(q) = ObjectType$) then ObjectToDraw = q FirstNodeOfObject = LBWF.ObjectFirstNode(ObjectToDraw) LastNodeOfObject = LBWF.ObjectLastNode(ObjectToDraw) FirstLineOfObject = LBWF.ObjectFirstLine(ObjectToDraw) LastLineOfObject = LBWF.ObjectLastLine(ObjectToDraw) 'The documentation for this elaborate procedure will 'not be contained herein. To see the documentation, 'visit the function FF.LBWF.DrawAllObjects() Cam2CtrX = (LBWF.VCtrX(1) - LBWF.CamX(1)) Cam2CtrY = (LBWF.VCtrY(1) - LBWF.CamY(1)) Cam2CtrZ = (LBWF.VCtrZ(1) - LBWF.CamZ(1)) LenCam2Ctr = sqr(Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2) virtualXi = (-1)*(Cam2CtrZ) virtualXj = 0 virtualXk = Cam2CtrX LenVirtualX = sqr(virtualXi^2 + virtualXj^2 + virtualXk^2) virtualXi = virtualXi / LenVirtualX virtualXj = virtualXj / LenVirtualX virtualXk = virtualXk / LenVirtualX virtualYi = (-1)*(virtualXk * Cam2CtrY) virtualYj = (virtualXk * Cam2CtrX) - (virtualXi * Cam2CtrZ) virtualYk = (virtualXi * Cam2CtrY) LenVirtualY = sqr(virtualYi^2 + virtualYj^2 + virtualYk^2) virtualYi = virtualYi / LenVirtualY virtualYj = virtualYj / LenVirtualY virtualYk = virtualYk / LenVirtualY virtualXi = virtualXi / LenCam2Ctr virtualXj = virtualXj / LenCam2Ctr virtualXk = virtualXk / LenCam2Ctr virtualYi = virtualYi / LenCam2Ctr virtualYj = virtualYj / LenCam2Ctr virtualYk = virtualYk / LenCam2Ctr ''''''''''''''''''''''''''''''''''''''''''''''' 'FIND SCREEN COORDINATES OF OBJECT NODES ''''''''''''''''''''''''''''''''''''''''''''''' for i = FirstNodeOfObject to LastNodeOfObject 'Establish the vector components of the Camera-to-Node Vector Cam2NodeX = (LBWF.NodeWX(i) - LBWF.CamX(1)) Cam2NodeY = (LBWF.NodeWY(i) - LBWF.CamY(1)) Cam2NodeZ = (LBWF.NodeWZ(i) - LBWF.CamZ(1)) numerator = Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2 denominator = (Cam2NodeX * Cam2CtrX) + (Cam2NodeY * Cam2CtrY) + (Cam2NodeZ * Cam2CtrZ) t = (numerator / denominator) ipX = LBWF.CamX(1) + Cam2NodeX*t ipY = LBWF.CamY(1) + Cam2NodeY*t ipZ = LBWF.CamZ(1) + Cam2NodeZ*t Ctr2ipX = (ipX - LBWF.VCtrX(1)) Ctr2ipY = (ipY - LBWF.VCtrY(1)) Ctr2ipZ = (ipZ - LBWF.VCtrZ(1)) PX = (Ctr2ipX*virtualXi) + (Ctr2ipY*virtualXj) + (Ctr2ipZ*virtualXk) SCM = 500 'Note: SCM is an acronym for "Secondary Scale Multiplier". ' This value was found by experimentation when it was ' observed that the Scale factor by itself was ' too small without a multiplier. LBWF.NodeSX(i) = LBWF.ScrCenterX(1) + (SCM*LBWF.ZoomFac(1) * PX) PY = (Ctr2ipX*virtualYi) + (Ctr2ipY*virtualYj) + (Ctr2ipZ*virtualYk) LBWF.NodeSY(i) = LBWF.ScrCenterY(1) - (SCM*LBWF.ZoomFac(1) * PY) next i 'With the the screen coordinates of the nodes determined, 'it is time to draw each line of the object... 'Set the drawing color for the object... DrawingColor$ = LBWF.ObjectColor$(ObjectToDraw) print #main.wfscene, "color "; DrawingColor$ 'Set the line thickness for the object... LineThickness = LBWF.ObjectLineThickness(ObjectToDraw) print #main.wfscene, "size "; LineThickness for i = FirstLineOfObject to LastLineOfObject x1 = LBWF.NodeSX(LBWF.LineInode(i)) y1 = LBWF.NodeSY(LBWF.LineInode(i)) x2 = LBWF.NodeSX(LBWF.LineJnode(i)) y2 = LBWF.NodeSY(LBWF.LineJnode(i)) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 next i end if next q 'Reset the default line thickness back to 1... print #main.wfscene, "size 1" 'Set the default drawing color back to black... print #main.wfscene, "color black" End Function '''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.DrawObject(ObjectName$) ObjectToDraw = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToDraw = i i = LBWF.ObjectCount(1) end if next i FirstNodeOfObject = LBWF.ObjectFirstNode(ObjectToDraw) LastNodeOfObject = LBWF.ObjectLastNode(ObjectToDraw) FirstLineOfObject = LBWF.ObjectFirstLine(ObjectToDraw) LastLineOfObject = LBWF.ObjectLastLine(ObjectToDraw) 'The documentation for this elaborate procedure will 'not be contained herein. To see the documentation, 'visit the function FF.LBWF.DrawAllObjects() Cam2CtrX = (LBWF.VCtrX(1) - LBWF.CamX(1)) Cam2CtrY = (LBWF.VCtrY(1) - LBWF.CamY(1)) Cam2CtrZ = (LBWF.VCtrZ(1) - LBWF.CamZ(1)) LenCam2Ctr = sqr(Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2) virtualXi = (-1)*(Cam2CtrZ) virtualXj = 0 virtualXk = Cam2CtrX LenVirtualX = sqr(virtualXi^2 + virtualXj^2 + virtualXk^2) virtualXi = virtualXi / LenVirtualX virtualXj = virtualXj / LenVirtualX virtualXk = virtualXk / LenVirtualX virtualYi = (-1)*(virtualXk * Cam2CtrY) virtualYj = (virtualXk * Cam2CtrX) - (virtualXi * Cam2CtrZ) virtualYk = (virtualXi * Cam2CtrY) LenVirtualY = sqr(virtualYi^2 + virtualYj^2 + virtualYk^2) virtualYi = virtualYi / LenVirtualY virtualYj = virtualYj / LenVirtualY virtualYk = virtualYk / LenVirtualY virtualXi = virtualXi / LenCam2Ctr virtualXj = virtualXj / LenCam2Ctr virtualXk = virtualXk / LenCam2Ctr virtualYi = virtualYi / LenCam2Ctr virtualYj = virtualYj / LenCam2Ctr virtualYk = virtualYk / LenCam2Ctr ''''''''''''''''''''''''''''''''''''''''''''''' 'FIND SCREEN COORDINATES OF OBJECT NODES ''''''''''''''''''''''''''''''''''''''''''''''' for i = FirstNodeOfObject to LastNodeOfObject 'Establish the vector components of the Camera-to-Node Vector Cam2NodeX = (LBWF.NodeWX(i) - LBWF.CamX(1)) Cam2NodeY = (LBWF.NodeWY(i) - LBWF.CamY(1)) Cam2NodeZ = (LBWF.NodeWZ(i) - LBWF.CamZ(1)) numerator = Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2 denominator = (Cam2NodeX * Cam2CtrX) + (Cam2NodeY * Cam2CtrY) + (Cam2NodeZ * Cam2CtrZ) t = (numerator / denominator) ipX = LBWF.CamX(1) + Cam2NodeX*t ipY = LBWF.CamY(1) + Cam2NodeY*t ipZ = LBWF.CamZ(1) + Cam2NodeZ*t Ctr2ipX = (ipX - LBWF.VCtrX(1)) Ctr2ipY = (ipY - LBWF.VCtrY(1)) Ctr2ipZ = (ipZ - LBWF.VCtrZ(1)) PX = (Ctr2ipX*virtualXi) + (Ctr2ipY*virtualXj) + (Ctr2ipZ*virtualXk) SCM = 500 'Note: SCM is an acronym for "Secondary Scale Multiplier". ' This value was found by experimentation when it was ' observed that the Scale factor by itself was ' too small without a multiplier. LBWF.NodeSX(i) = LBWF.ScrCenterX(1) + (SCM*LBWF.ZoomFac(1) * PX) PY = (Ctr2ipX*virtualYi) + (Ctr2ipY*virtualYj) + (Ctr2ipZ*virtualYk) LBWF.NodeSY(i) = LBWF.ScrCenterY(1) - (SCM*LBWF.ZoomFac(1) * PY) next i 'With the the screen coordinates of the nodes determined, 'it is time to draw each line of the object... 'Set the drawing color for the object... DrawingColor$ = LBWF.ObjectColor$(ObjectToDraw) print #main.wfscene, "color "; DrawingColor$ 'Set the line thickness for the object... LineThickness = LBWF.ObjectLineThickness(ObjectToDraw) print #main.wfscene, "size "; LineThickness for i = FirstLineOfObject to LastLineOfObject x1 = LBWF.NodeSX(LBWF.LineInode(i)) y1 = LBWF.NodeSY(LBWF.LineInode(i)) x2 = LBWF.NodeSX(LBWF.LineJnode(i)) y2 = LBWF.NodeSY(LBWF.LineJnode(i)) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 next i 'Reset the default line thickness back to 1... print #main.wfscene, "size 1" 'Set the default drawing color back to black... print #main.wfscene, "color black" end Function '''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.DrawAllObjects() 'Find the camera-to-viewing-center vector... Cam2CtrX = (LBWF.VCtrX(1) - LBWF.CamX(1)) Cam2CtrY = (LBWF.VCtrY(1) - LBWF.CamY(1)) Cam2CtrZ = (LBWF.VCtrZ(1) - LBWF.CamZ(1)) 'Length of the camera-to-viewing-center vector... LenCam2Ctr = sqr(Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2) 'The vector equation for the virtual image plane can be written 'as follows: ' 'Cam2CtrX*(x - CtrX) + Cam2CtrY*(y - CtrY) + Cam2CtrZ*(z - CtrZ) = 0 'Imagine a unit vector pointing in the -Y direction. The 'components of this vector are 0i -1j + 0k. When we take 'the cross product of this vector with the Camera-to-Center 'vector, the result is the virtual x-axis vector imposed 'upon the virtual image plane. These are the vector 'components of the virtual x-axis vector. virtualXi = (-1)*(Cam2CtrZ) virtualXj = 0 virtualXk = Cam2CtrX 'Find the length of this vector, then divide components 'by this length. LenVirtualX = sqr(virtualXi^2 + virtualXj^2 + virtualXk^2) virtualXi = virtualXi / LenVirtualX virtualXj = virtualXj / LenVirtualX virtualXk = virtualXk / LenVirtualX 'In order to find the virtual y-axis on the image plane, 'we need to take the cross product of the virtual x-axis 'vector with the Camera-to-Center Vector. Given below is 'the result of that cross product. virtualYi = (-1)*(virtualXk * Cam2CtrY) virtualYj = (virtualXk * Cam2CtrX) - (virtualXi * Cam2CtrZ) virtualYk = (virtualXi * Cam2CtrY) 'Find the length of this vector, then divide the 'components by this length LenVirtualY = sqr(virtualYi^2 + virtualYj^2 + virtualYk^2) virtualYi = virtualYi / LenVirtualY virtualYj = virtualYj / LenVirtualY virtualYk = virtualYk / LenVirtualY 'Divide the unit virtual X-axis vector and the 'virtual Y-axis vector by LenCam2Ctr. This transformation 'of these two vectors will allow the objects to get 'smaller as the camera moves away from the viewing 'center, or get larger as the camera moves toward 'the viewing center. virtualXi = virtualXi / LenCam2Ctr virtualXj = virtualXj / LenCam2Ctr virtualXk = virtualXk / LenCam2Ctr virtualYi = virtualYi / LenCam2Ctr virtualYj = virtualYj / LenCam2Ctr virtualYk = virtualYk / LenCam2Ctr ''''''''''''''''''''''''''''''''''''''''''''''' 'OBJECT NODES *** OBJECT NODES *** OBJECT NODES ''''''''''''''''''''''''''''''''''''''''''''''' 'For each and every node in every object, 'find the screen coordinates for i = 1 to LBWF.NodeCount(1) 'Establish the vector components of the Camera-to-Node Vector Cam2NodeX = (LBWF.NodeWX(i) - LBWF.CamX(1)) Cam2NodeY = (LBWF.NodeWY(i) - LBWF.CamY(1)) Cam2NodeZ = (LBWF.NodeWZ(i) - LBWF.CamZ(1)) 'The parametric equations for the Camera-to-Node Vector 'can be written as follows: ' 'x = CamX + Cam2NodeX*t 'y = CamY + Cam2NodeY*t 'z = CamZ + Cam2NodeZ*t ' 'Plug these three equations into the vector equation 'for the virtual image plane... ' 'Cam2CtrX*(x - CtrX) + Cam2CtrY*(y - CtrY) + Cam2CtrZ*(z - CtrZ) = 0 ' '...and then solve for t numerator = Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2 denominator = (Cam2NodeX * Cam2CtrX) + (Cam2NodeY * Cam2CtrY) + (Cam2NodeZ * Cam2CtrZ) t = (numerator / denominator) 'Having solved for t, determine the point in space '(ipx, ipy, ipz) where 'the Camera-to-Node vector intersects 'the virtual image plane. ipX = LBWF.CamX(1) + Cam2NodeX*t ipY = LBWF.CamY(1) + Cam2NodeY*t ipZ = LBWF.CamZ(1) + Cam2NodeZ*t 'Establish the vector components of the vector from the 'center to (ipx, ipy, ipz). Ctr2ipX = (ipX - LBWF.VCtrX(1)) Ctr2ipY = (ipY - LBWF.VCtrY(1)) Ctr2ipZ = (ipZ - LBWF.VCtrZ(1)) 'The projection of this vector along the virtual X-axis 'is the dot product of this vector with the unit vector 'along the virtual X-Axis" PX = (Ctr2ipX*virtualXi) + (Ctr2ipY*virtualXj) + (Ctr2ipZ*virtualXk) SCM = 500 'Note: SCM is an acronym for "Secondary Scale Multiplier". ' This value was found by experimentation when it was ' observed that the Scale factor by itself was ' too small without a multiplier. LBWF.NodeSX(i) = LBWF.ScrCenterX(1) + (SCM*LBWF.ZoomFac(1) * PX) 'The projection of this vector along the virtual Y-axis 'is the dot product of this vector with the unit vector 'along the virtual Y-Axis" PY = (Ctr2ipX*virtualYi) + (Ctr2ipY*virtualYj) + (Ctr2ipZ*virtualYk) LBWF.NodeSY(i) = LBWF.ScrCenterY(1) - (SCM*LBWF.ZoomFac(1) * PY) next i ''''''''''''''''''''''''''''''''''''''''' 'AXES NODES *** AXES NODES *** AXES NODES ''''''''''''''''''''''''''''''''''''''''' for i = 1 to 4 'Establish the vector components of the Camera-to-Node Vector Cam2NodeX = (LBWF.AxesWorldX(i) - LBWF.CamX(1)) Cam2NodeY = (LBWF.AxesWorldY(i) - LBWF.CamY(1)) Cam2NodeZ = (LBWF.AxesWorldZ(i) - LBWF.CamZ(1)) numerator = Cam2CtrX^2 + Cam2CtrY^2 + Cam2CtrZ^2 denominator = (Cam2NodeX * Cam2CtrX) + (Cam2NodeY * Cam2CtrY) + (Cam2NodeZ * Cam2CtrZ) t = (numerator / denominator) ipX = LBWF.CamX(1) + Cam2NodeX*t ipY = LBWF.CamY(1) + Cam2NodeY*t ipZ = LBWF.CamZ(1) + Cam2NodeZ*t Ctr2ipX = (ipX - LBWF.VCtrX(1)) Ctr2ipY = (ipY - LBWF.VCtrY(1)) Ctr2ipZ = (ipZ - LBWF.VCtrZ(1)) PX = (Ctr2ipX*virtualXi) + (Ctr2ipY*virtualXj) + (Ctr2ipZ*virtualXk) SCM = 500 LBWF.AxesScreenX(i) = LBWF.ScrCenterX(1) + (SCM*LBWF.ZoomFac(1) * PX) PY = (Ctr2ipX*virtualYi) + (Ctr2ipY*virtualYj) + (Ctr2ipZ*virtualYk) LBWF.AxesScreenY(i) = LBWF.ScrCenterY(1) - (SCM*LBWF.ZoomFac(1) * PY) next i 'If the "visible" property of the axes is set to 1, 'then draw the axes on the screen... if (LBWF.AxesVisible(1) = 1) then 'Set the line thickness for the axes... print #main.wfscene, "size "; LBWF.AxesLineThickness(1) 'Draw the x-axis (set color for x-axis first) print #main.wfscene, "color "; LBWF.XaxisColor$(1) x1 = LBWF.AxesScreenX(1) : y1 = LBWF.AxesScreenY(1) x2 = LBWF.AxesScreenX(2) : y2 = LBWF.AxesScreenY(2) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 'Draw the y-axis (set color for y-axis first) print #main.wfscene, "color "; LBWF.YaxisColor$(1) x1 = LBWF.AxesScreenX(1) : y1 = LBWF.AxesScreenY(1) x2 = LBWF.AxesScreenX(3) : y2 = LBWF.AxesScreenY(3) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 'Draw the z-axis (set color for z-axis first) print #main.wfscene, "color "; LBWF.ZaxisColor$(1) x1 = LBWF.AxesScreenX(1) : y1 = LBWF.AxesScreenY(1) x2 = LBWF.AxesScreenX(4) : y2 = LBWF.AxesScreenY(4) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 'Reset the line thickness back to 1... print #main.wfscene, "size 1" end if 'Now that the screen coordinates of all of the nodes 'have been determined, it is time to draw all of the 'lines. Draw the lines one object at a time, so 'that line colors can be changed between objects... For obj = 1 to LBWF.ObjectCount(1) 'Draw the object only if its "visible" property is set to 1... if (LBWF.ObjectVisible(obj) = 1) then 'Set the drawing color for the object... DrawingColor$ = LBWF.ObjectColor$(obj) print #main.wfscene, "color "; DrawingColor$ 'Set the line thickness for the object... LineThickness = LBWF.ObjectLineThickness(obj) print #main.wfscene, "size "; LineThickness FirstLine = LBWF.ObjectFirstLine(obj) LastLine = LBWF.ObjectLastLine(obj) for i = FirstLine to LastLine x1 = LBWF.NodeSX(LBWF.LineInode(i)) y1 = LBWF.NodeSY(LBWF.LineInode(i)) x2 = LBWF.NodeSX(LBWF.LineJnode(i)) y2 = LBWF.NodeSY(LBWF.LineJnode(i)) print #main.wfscene, "line "; x1; " "; y1; " "; x2; " "; y2 next i 'If needed, pause during testing of drawn objects... 'PPP = FF.LBWF.PauseMilliseconds(1000) end if next obj 'Reset the default line thickness back to 1... print #main.wfscene, "size 1" 'Set the default drawing color back to black... print #main.wfscene, "color black" end Function '''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestLibraryResources$() FF.LBWF.RequestLibraryResources$ = str$(LBWF.NodeResources(1)) + " " + _ str$(LBWF.LineResources(1)) + " " + _ str$(LBWF.ObjectResources(1)) end Function '''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestRemainingResources$() RemainingNodes = LBWF.NodeResources(1) - LBWF.NodeCount(1) RemainingLines = LBWF.LineResources(1) - LBWF.LineCount(1) RemainingObjects = LBWF.ObjectResources(1) - LBWF.ObjectCount(1) FF.LBWF.RequestRemainingResources$ = str$(RemainingNodes) + " " + _ str$(RemainingLines) + " " + _ str$(RemainingObjects) end Function '''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) 'Determine the object on which to generate a report 'by comparing the name argument against a list of object names... ObjectOfReport = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectOfReport = i i = LBWF.ObjectCount(1) end if next i ObjectCenterX = LBWF.ObjectCenterX(ObjectOfReport) ObjectCenterY = LBWF.ObjectCenterY(ObjectOfReport) ObjectCenterZ = LBWF.ObjectCenterZ(ObjectOfReport) FF.LBWF.RequestObjectGeometricCenter$ = str$(ObjectCenterX) + " " + _ str$(ObjectCenterY) + " " + _ str$(ObjectCenterZ) end Function ''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.MoveObjectAbsolute(ObjectName$, pX, pY, pZ) ObjectCenter$ = FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) currentCenterX = val(word$(ObjectCenter$, 1)) currentCenterY = val(word$(ObjectCenter$, 2)) currentCenterZ = val(word$(ObjectCenter$, 3)) transX = pX - currentCenterX transY = pY - currentCenterY transZ = pZ - currentCenterZ 'Now, call the function which translates an object. 'This will translate the object to the absolute 'point identified by (pX,pY,pZ). AAA = FF.LBWF.TranslateObject(ObjectName$, transX, transY, transZ) end Function '''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectColor$(ObjectName$) 'Find the index number of the object by comparing 'it against all the names in the list of objects... ObjectOfReport = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectOfReport = i i = LBWF.ObjectCount(1) end if next i FF.LBWF.RequestObjectColor$ = LBWF.ObjectColor$(ObjectOfReport) End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectLineThickness(ObjectName$) 'Find the index number of the object by comparing 'it against all the names in the list of objects... ObjectOfReport = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectOfReport = i i = LBWF.ObjectCount(1) end if next i FF.LBWF.RequestObjectLineThickness = LBWF.ObjectLineThickness(ObjectOfReport) End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.HideAllObjects() OC = LBWF.ObjectCount(1) for i = 1 to OC LBWF.ObjectVisible(i) = 0 next i End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ShowAllObjects() OC = LBWF.ObjectCount(1) for i = 1 to OC LBWF.ObjectVisible(i) = 1 next i End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectType$(ObjectName$) ObjectToIdentifyType = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToIdentifyType = i i = LBWF.ObjectCount(1) end if next i FF.LBWF.RequestObjectType$ = LBWF.ObjectType$(ObjectToIdentifyType) End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RotateObjectAboutY(ObjectName$, YRotationInDegrees) 'Multiply the rotation angle by (-1) YRotationInDegrees = (-1) * YRotationInDegrees pi = 3.14159 YRotRads = (YRotationInDegrees/360)*(2*pi) ObjectToRotate = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToRotate = i i = LBWF.ObjectCount(1) end if next i ObjectCenter$ = FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) CenterX = val(word$(ObjectCenter$,1)) CenterY = val(word$(ObjectCenter$,2)) CenterZ = val(word$(ObjectCenter$,3)) ObjectsFirstNode = LBWF.ObjectFirstNode(ObjectToRotate) ObjectsLastNode = LBWF.ObjectLastNode(ObjectToRotate) for i = ObjectsFirstNode to ObjectsLastNode deltaX = (LBWF.NodeWX(i) - CenterX) deltaZ = (LBWF.NodeWZ(i) - CenterZ) R = sqr(deltaX^2 + deltaZ^2) OldAngleRads = FF.LBWF.ATAN2(deltaX, deltaZ) NewAngleRads = OldAngleRads + YRotRads LBWF.NodeWX(i) = CenterX + R*cos(NewAngleRads) LBWF.NodeWZ(i) = CenterZ + R*sin(NewAngleRads) next i End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RotateObjectAboutX(ObjectName$, XRotationInDegrees) 'Multiply the rotation angle by (-1)... XRotationInDegrees = (-1)*XRotationInDegrees pi = 3.14159 XRotRads = (XRotationInDegrees/360)*(2*pi) ObjectToRotate = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToRotate = i i = LBWF.ObjectCount(1) end if next i ObjectCenter$ = FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) CenterX = val(word$(ObjectCenter$,1)) CenterY = val(word$(ObjectCenter$,2)) CenterZ = val(word$(ObjectCenter$,3)) ObjectsFirstNode = LBWF.ObjectFirstNode(ObjectToRotate) ObjectsLastNode = LBWF.ObjectLastNode(ObjectToRotate) for i = ObjectsFirstNode to ObjectsLastNode deltaY = (LBWF.NodeWY(i) - CenterY) deltaZ = (LBWF.NodeWZ(i) - CenterZ) R = sqr(deltaY^2 + deltaZ^2) OldAngleRads = FF.LBWF.ATAN2(deltaZ, deltaY) NewAngleRads = OldAngleRads + XRotRads LBWF.NodeWZ(i) = CenterZ + R*cos(NewAngleRads) LBWF.NodeWY(i) = CenterY + R*sin(NewAngleRads) next i End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RotateObjectAboutZ(ObjectName$, ZRotationInDegrees) pi = 3.14159 ZRotRads = (ZRotationInDegrees/360)*(2*pi) ObjectToRotate = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectToRotate = i i = LBWF.ObjectCount(1) end if next i ObjectCenter$ = FF.LBWF.RequestObjectGeometricCenter$(ObjectName$) CenterX = val(word$(ObjectCenter$,1)) CenterY = val(word$(ObjectCenter$,2)) CenterZ = val(word$(ObjectCenter$,3)) ObjectsFirstNode = LBWF.ObjectFirstNode(ObjectToRotate) ObjectsLastNode = LBWF.ObjectLastNode(ObjectToRotate) for i = ObjectsFirstNode to ObjectsLastNode deltaY = (LBWF.NodeWY(i) - CenterY) deltaX = (LBWF.NodeWX(i) - CenterX) R = sqr(deltaY^2 + deltaX^2) OldAngleRads = FF.LBWF.ATAN2(deltaX, deltaY) NewAngleRads = OldAngleRads + ZRotRads LBWF.NodeWX(i) = CenterX + R*cos(NewAngleRads) LBWF.NodeWY(i) = CenterY + R*sin(NewAngleRads) next i End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectVisibleState(ObjectName$) 'Find the index number of the object by comparing 'it against all the names in the list of objects... ObjectOfReport = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectOfReport = i i = LBWF.ObjectCount(1) end if next i FF.LBWF.RequestObjectVisibleState = LBWF.ObjectVisible(ObjectOfReport) End Function ''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.RequestObjectExtents$(ObjectName$) 'Find the index number of the object by comparing 'it against all the names in the list of objects... ObjectOfReport = 0 for i = 1 to LBWF.ObjectCount(1) if (ObjectName$ = LBWF.ObjectName$(i)) then ObjectOfReport = i i = LBWF.ObjectCount(1) end if next i FirstNode = LBWF.ObjectFirstNode(ObjectOfReport) LastNode = LBWF.ObjectLastNode(ObjectOfReport) Xmin = LBWF.NodeWX(FirstNode) Xmax = LBWF.NodeWX(FirstNode) Ymin = LBWF.NodeWY(FirstNode) Ymax = LBWF.NodeWY(FirstNode) Zmin = LBWF.NodeWZ(FirstNode) Zmax = LBWF.NodeWZ(FirstNode) for i = (FirstNode + 1) to LastNode if (LBWF.NodeWX(i) < Xmin) then Xmin = LBWF.NodeWX(i) end if if (LBWF.NodeWX(i) > Xmax) then Xmax = LBWF.NodeWX(i) end if if (LBWF.NodeWY(i) < Ymin) then Ymin = LBWF.NodeWY(i) end if if (LBWF.NodeWY(i) > Ymax) then Ymax = LBWF.NodeWY(i) end if if (LBWF.NodeWZ(i) < Zmin) then Zmin = LBWF.NodeWZ(i) end if if (LBWF.NodeWZ(i) > Zmax) then Zmax = LBWF.NodeWZ(i) end if next i FF.LBWF.RequestObjectExtents$ = str$(Xmin) + " " + str$(Xmax) + " " + str$(Ymin) + " " + str$(Ymax) + " " + str$(Zmin) + " " + str$(Zmax) End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''' '''''''''''''''''''''''''''''''''''''''''''''''''''''''' Function FF.LBWF.ATAN2(x, y) pi = 3.14159265 Result$ = "Undetermined" If (x = 0) and (y > 0) then FF.LBWF.ATAN2 = pi / 2 Result$ = "Determined" end if if (x = 0) and (y < 0) then FF.LBWF.ATAN2 = 3 * pi / 2 Result$ = "Determined" end if if (x > 0) and (y = 0) then FF.LBWF.ATAN2 = 0 Result$ = "Determined" end if if (x < 0) and (y = 0) then FF.LBWF.ATAN2 = pi Result$ = "Determined" end if if (x = 0) and (y = 0) then FF.LBWF.ATAN2 = 0 Result$ = "Determined" end if If Result$ = "Determined" then [End.of.function] BaseAngle = ATN(abs(y)/abs(x)) If (x > 0) and (y > 0) then FF.LBWF.ATAN2 = BaseAngle If (x < 0) and (y > 0) then FF.LBWF.ATAN2 = pi - BaseAngle If (x < 0) and (y < 0) then FF.LBWF.ATAN2 = pi + BaseAngle If (x > 0) and (y < 0) then FF.LBWF.ATAN2 = 2*pi - BaseAngle [End.of.function] End Function '''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' LBWF.ObjectFirstNode(LBWF.ObjectResources(1)) ' LBWF.ObjectLastNode(LBWF.ObjectResources(1)) 'LBWF.ObjectCount(1) ' LBWF.ObjectVisible(LBWF.ObjectResources(1)) ''''''''''''''''''''''''''''''''''''''''''''''''''''''' 'LBWF.ObjectName$(LBWF.ObjectResources(1)) ''''''''''''''''''''''''''''''''''''''''''''' [[code]] ---------- [[LBWFTemplate06#TopOfPage|Top of Page]] Return to the companion article for these functions, [[LBWFCh02|Chapter 2: The Liberty BASIC Wire Frame Library - Version 0.6]]. ---------- If you prefer to download the **LBWF06_template.bas**, Click [[file:LBWF06_template.zip]]. ---------- Tom Nally Steelweaver52@aol.com ---------- //Note: This linked source code accompanies **[[LBWFCh02|Chapter 2: The Liberty BASIC Wire Frame Library - Version 0.6]]** which originally appeared in the **[[http://babek.info/libertybasicfiles/lbnews/nl135/lbwf01.htm|Liberty BASIC Newsletter, Issue #135]]**. It is reprinted here with the permission of the author.// [[user:JanetTerra]]
JanetTerra
Jul 23, 2006
JanetTerra
Jul 23, 2006