lovemy65stang Posted November 14, 2007 Share Posted November 14, 2007 I have a difficult (at least for me) problem. I'm using VBA inside of AutoCAD 2006. What I'm trying to accomplish is a sort of drawing clean-up. All of the drawings my company creates need to go through this clean-up process, so I've been asked to automate it. The end result is that any items that aren’t being used inside any of the layouts should be deleted from model space. Each drawing has at least one layout within paper space. When I run the following code, the TypeName of the viewports are all "IAcadPViewPort2" : Dim objAcadObject As AcadObject Dim strName As String For Each objAcadObject In ThisDrawing.PaperSpace strName = TypeName(objAcadObject) Next The solution as I see it (please tell me if you have any better ideas) could be laid out in the following code/pseudo-code : 'Variables Dim objAcadObject As AcadObject Dim objLayout As AcadLayout 'Go to paperspace ThisDrawing.ActiveSpace = acPaperSpace 'SELECT ALL items in one of the viewports. 'This is the same as selecting all items in model space For Each objLayout In ThisDrawing.Layouts For Each objAcadObject In objLayout.Block If TypeName(objAcadObject) = "IAcadPViewport2" Then 'SELECT ALL 'Exit the loop since the selection is done Exit For End If Next Exit For Next 'UNSELECT all visible items in each viewport inside paper space For Each objLayout In ThisDrawing.Layouts For Each objAcadObject In objLayout.Block If TypeName(objAcadObject) = "IAcadPViewport2" Then 'UNSELECT all items visible in the viewport 'Same as holding down the shift key and using an X box inside the viewport 'UNSELECT 'objAcadObject.Delete End If Next Next 'Any items still selected are not being used inside paper space. 'Since they are not being used, they can be deleted, so delete them! 'DELETE The selection and delete processes are what I can’t figure out. Any help would be EXTREMELY helpful!!!! Thanks in advance, Brian W. BTW... I'm new to this forum, so please forgive me if I do something wrong and let me know what I'm doing wrong so I don't do it again! Quote Link to comment Share on other sites More sharing options...
zourtney Posted November 15, 2007 Share Posted November 15, 2007 It sounds like you have problem a lot like mine. I have objects which is invisible. You can use a selection set to select objects on the screen; for example, something like: Dim ss as AcadSelectionSet = ActiveDocument.SelectionSets.Add( "newone" ) However, AutoCad seems to either refuse to run the command and crash the program, or just simply ignore it and print ** That command may not be invoked transparently ** in the commandline. * sigh *... that's where I am. Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted November 15, 2007 Author Share Posted November 15, 2007 I think the reason your code isn't working is because you need to declare your object separately from setting it. Try something like this: Dim ss As AcadSelectionSet Set ss = ActiveDocument.SelectionSets.Add("newone") Hope this helps, -Brian Quote Link to comment Share on other sites More sharing options...
hendie Posted November 15, 2007 Share Posted November 15, 2007 it's a bit more complicated than that I'm afraid. You can't just grab objects through a viewport window. You have to check the min/max coordinates of the viewport, translate that to modelspace coordinates, then check if any of your entities are within those coordinates. then what do you do with any objects that are part in/part out ? Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted November 15, 2007 Author Share Posted November 15, 2007 Hendie, Thanks for shedding some light on the subject. Do you think it would be possible to do something like the following: 'Variables Dim objAcadObject As AcadObject Dim objLayout As AcadLayout Dim arrBottomRightX() As Double, arrBottomRightY() As Double Dim arrTopLeftX() As Double, arrTopLeftY() As Double 'Go to paper space ThisDrawing.ActiveSpace = acPaperSpace 'Get coordinates inside modelspace from the viewports For Each objLayout In ThisDrawing.Layouts For Each objAcadObject In objLayout.Block If TypeName(objAcadObject) = "IAcadPViewport2" Then 'Store bottom right and top left model space coordinates of the viewport ReDim Preserve arrBottomRightX(i): ReDim Preserve arrBottomRightY(i) ReDim Preserve arrTopLeftX(i): ReDim Preserve arrTopLeftY(i) 'arrBottomRightX(i) = ??? 'arrBottomRightY(i) = ??? 'arrTopLeftX(i) = ??? 'arrTopLeftY(i) = ??? i = i + 1 End If Next Next 'Go to model space ThisDrawing.ActiveSpace = acModelSpace 'Select everything inside the coordinates from bottom right to top left For i = 0 To UBound(arrBottomRightX) '??? Next i 'Delete everything that is selected '??? Any insight you, or anyone for that matter could give would be a HUGE help! Thanks in advance for everyone's help. -Brian Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted November 21, 2007 Author Share Posted November 21, 2007 I finally figured it all out! The following code seems to work great, but if anyone has any suggestions on how I might improve it, please let me know. I worked really hard on this code, so please give credit to me in your comments if you decide to use it. Here it is! Enjoy! 'Returns true if the cleanup was successful; false if it wasn't Public Function cleanupDWG() As Boolean 'On Error Resume Next On Error GoTo ErrorFound 'Variables 'Various objects/array of objects Dim objAcadObject As AcadObject Dim objLayout As AcadLayout Dim objEntities() As AcadEntity 'Add the two selection sets you will be using Dim ss1 As AcadSelectionSet, ssT As AcadSelectionSet Set ss1 = ThisDrawing.SelectionSets.Add("ss1") Set ssT = ThisDrawing.SelectionSets.Add("ssT") 'Points defining the model space points of each viewport Dim arrPoints As Variant: arrPoints = Array(arrPoints, arrPoints) Dim lowerRightP(2) As Double, upperLeftP(2) As Double 'Various counters Dim purgeCount As Integer, vPortsCount As Integer, ssTEntityCount As Integer 'Boolean defining if you are inside the first viewport in a layout (the paperspace itself) Dim boolFirstOne As Boolean: boolFirstOne = True 'Used for filtering only items inside model space Dim FilterData(0) As Variant: Dim DataValue As Variant FilterData(0) = 0: DataValue = FilterData Dim FilterType(0) As Integer: Dim Groupcode As Variant FilterType(0) = 67: Groupcode = FilterType 'Make sure the dynmode is off Call ThisDrawing.SetVariable("DYNMODE", False) 'Go to paper space ThisDrawing.ActiveSpace = acPaperSpace 'Loop through all the layouts For Each objLayout In ThisDrawing.Layouts 'Make sure you aren't in model space If objLayout.Name <> "Model" Then 'Set the layout to be the active layout ThisDrawing.ActiveLayout = objLayout 'Make sure you are inside paper space before you zoom, then zoom ThisDrawing.MSpace = False ZoomExtents 'Loop through all the objects For Each objAcadObject In objLayout.Block 'If the object name is an MVIEW (IAcadPViewPort2 in VBA terms) If TypeName(objAcadObject) = "IAcadPViewport2" Then 'The first one you find will be the actual layout, so skip it If boolFirstOne = True Then 'Set the first viewport found flag to false for the rest of this layout boolFirstOne = False Else 'Go inside model space inside paper space ThisDrawing.MSpace = True 'Get the points for the selection Call getCrossingBoxPoints(objAcadObject, lowerRightP, upperLeftP) 'Store those points for later use ReDim Preserve arrPoints(vPortsCount + 1) arrPoints(vPortsCount) = lowerRightP: arrPoints(vPortsCount + 1) = upperLeftP vPortsCount = vPortsCount + 2 End If End If Next 'Re-set the firs viewport found flag to true for the next layout boolFirstOne = True End If Next 'Go to model space and zoom extents so the selection set will work properly ThisDrawing.ActiveSpace = acModelSpace ZoomExtents 'Select everything inside modelspace in a selection set With ThisDrawing.Utility 'Selects everything in model space ss1.Select acSelectionSetAll, , , Groupcode, DataValue End With 'If any viewports were found... If Not IsEmpty(arrPoints(0)) Then 'Loop through the viewport points that were found For vPortsCount = 0 To UBound(arrPoints) Step 2 'Clear the previous selection (if there was one) ssT.Clear 'Get selection set for the viewport using the points found earlier ssT.Select acSelectionSetCrossing, arrPoints(vPortsCount), arrPoints(vPortsCount + 1), Groupcode, DataValue 'If anything was selected... If ssT.Count > 0 Then 'Make space for all the entities in the second selection set ReDim objEntities(ssT.Count - 1) 'Set the objects in the second selection set into the entities array For ssTEntityCount = 0 To ssT.Count - 1 Set objEntities(ssTEntityCount) = ssT(ssTEntityCount) Next 'Remove all the entities from the second selection set from the first selection set ss1.RemoveItems objEntities End If Next 'Delete everything that is still selected ss1.Erase End If 'zoom extents ZoomExtents 'If you get here, you have succeeded. Return true cleanupDWG = True Exit Function ErrorFound: 'If the error is because you are trying to remove objects from the 'selection set that were already removed, then continue If Err.Number = -2147467259 Then Resume Next 'If the error is because of any other reason, then return false Else cleanupDWG = False End If End Function 'Retrieves the model space lower right and upper left points of the viewport Private Sub getCrossingBoxPoints(vp As AcadPViewport, lowerRightP() As Double, upperLeftP() As Double) On Error GoTo ErrorFound 'Variables Dim lowerLeftP As Variant, upperRightP As Variant Dim paperViewHeight As Double, paperViewWidth As Double 'Set the viewport to the current view port ThisDrawing.ActivePViewport = vp 'Get the min and max lower left and upper right points in paper space terms Call vp.GetBoundingBox(lowerLeftP, upperRightP) 'Translate the paper space points to model space points lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acPaperSpaceDCS, acDisplayDCS, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acPaperSpaceDCS, acDisplayDCS, False) lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acDisplayDCS, acWorld, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acDisplayDCS, acWorld, False) 'Set the lower right and upper left points of the view as they would be in model space lowerRightP(0) = upperRightP(0) lowerRightP(1) = lowerLeftP(1) upperLeftP(0) = lowerLeftP(0) upperLeftP(1) = upperRightP(1) Exit Sub ErrorFound: 'Error occured. Tell user and exit the program. MsgBox "Error occured in private sub getCrossingBoxPoints! Exiting program...", _ vbCritical + vbOKOnly, "Error!!!" End End Sub Hope some one besides me finds this useful! -Brian Wiggins Quote Link to comment Share on other sites More sharing options...
hendie Posted November 22, 2007 Share Posted November 22, 2007 well, it didn't do anything to my drawing except zoom extents in the layout tab. Nothing deleted/removed whatsoever ! you are also leaving a number of selection sets active in the drawing which means that the routine errors out on a second run and could cause further errors if anyone else tries creating a selection set with that name Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted November 26, 2007 Author Share Posted November 26, 2007 Hendie, I think I might have fixed the issues you were having with my code. It seems that on some machines, the viewport is seen by VBA as being an 'IAcadPViewport2' (like on my machine), and an 'IAcadPViewport' (no #2) on others. Weird huh . Anyways, the code looks for that now. I also made these changes: Set the UCS for all the viewports and model space to 'World' because it was causing some problems if the UCS was not set to 'World'. Added code to delete the selection sets when everything is finished, so you don't have the multiple-runs problem anymore (per your excellent suggestion Hendie ). Anyways, try out the following code and let me know if it works for you. If not, send me the drawing you are getting errors on and I'll take a look at it to see if I can't get it working. 'Returns true if the cleanup was successfully; false if it wasn't Public Function cleanupDWG() As Boolean 'On Error Resume Next On Error GoTo ErrorFound 'Variables 'Various objects/array of objects Dim objAcadObject As AcadObject Dim objLayout As AcadLayout Dim objEntities() As AcadEntity 'Add the two selection sets you will be using Dim ss1 As AcadSelectionSet, ssT As AcadSelectionSet Set ss1 = ThisDrawing.SelectionSets.Add("ss1") Set ssT = ThisDrawing.SelectionSets.Add("ssT") 'Points defining the model space points of each viewport Dim arrPoints As Variant: arrPoints = Array(arrPoints, arrPoints) Dim lowerRightP(2) As Double, upperLeftP(2) As Double 'Various counters Dim purgeCount As Integer, vPortsCount As Integer, ssTEntityCount As Integer 'Boolean defining if you are inside the first viewport in a layout (the paperspace itself) Dim boolFirstOne As Boolean: boolFirstOne = True 'Used for filtering only items inside model space Dim FilterData(0) As Variant: Dim DataValue As Variant FilterData(0) = 0: DataValue = FilterData Dim FilterType(0) As Integer: Dim Groupcode As Variant FilterType(0) = 67: Groupcode = FilterType 'Make sure the dynmode is off Call ThisDrawing.SetVariable("DYNMODE", False) 'Make sure that the UCS is set to World inside model space ThisDrawing.ActiveSpace = acModelSpace ThisDrawing.SendCommand "UCS WORLD " 'Go to paper space ThisDrawing.ActiveSpace = acPaperSpace 'Loop through all the layouts For Each objLayout In ThisDrawing.Layouts 'Make sure you aren't in model space If objLayout.Name <> "Model" Then 'Set the layout to be the active layout ThisDrawing.ActiveLayout = objLayout 'Make sure you are inside paper space before you zoom, then zoom ThisDrawing.MSpace = False ZoomExtents 'Loop through all the objects For Each objAcadObject In objLayout.Block 'If the object name is an MVIEW (either an IAcadPViewPort OR IAcadPViewPort2 in VBA terms) If TypeName(objAcadObject) = "IAcadPViewport" Or TypeName(objAcadObject) = "IAcadPViewport2" Then 'The first one you find will be the actual layout, so skip it If boolFirstOne = True Then 'Set the first viewport found flag to false for the rest of this layout boolFirstOne = False Else 'Go inside model space inside paper space ThisDrawing.MSpace = True 'Make sure that the UCS is set to World inside the viewport ThisDrawing.SendCommand "UCS WORLD " 'Get the points for the selection Call getCrossingBoxPoints(objAcadObject, lowerRightP, upperLeftP) 'Store those points for later use ReDim Preserve arrPoints(vPortsCount + 1) arrPoints(vPortsCount) = lowerRightP: arrPoints(vPortsCount + 1) = upperLeftP vPortsCount = vPortsCount + 2 End If End If Next 'Re-set the first viewport found flag to true for the next layout boolFirstOne = True 'Go outside of model space inside paperspace ThisDrawing.MSpace = False End If Next 'Go to model space and zoom extents so the selection set will work properly ThisDrawing.ActiveSpace = acModelSpace ZoomExtents 'Select everything inside modelspace in a selection set With ThisDrawing.Utility 'Selects everything in model space ss1.Select acSelectionSetAll, , , Groupcode, DataValue End With 'If any viewports were found... If Not IsEmpty(arrPoints(0)) Then 'Loop through the viewport points that were found For vPortsCount = 0 To UBound(arrPoints) Step 2 'Clear the previous selection (if there was one) ssT.Clear 'Get selection set for the viewport using the points found earlier ssT.Select acSelectionSetCrossing, arrPoints(vPortsCount), arrPoints(vPortsCount + 1), Groupcode, DataValue 'If anything was selected... If ssT.Count > 0 Then 'Make space for all the entities in the second selection set ReDim objEntities(ssT.Count - 1) 'Set the objects in the second selection set into the entities array For ssTEntityCount = 0 To ssT.Count - 1 Set objEntities(ssTEntityCount) = ssT(ssTEntityCount) Next 'Remove all the entities from the second selection set from the first selection set ss1.RemoveItems objEntities End If Next 'Delete everything that is still selected ss1.Erase End If 'Delete the selection sets from the drawing ss1.Delete ssT.Delete 'Go to model space ThisDrawing.ActiveSpace = acModelSpace 'zoom extents ZoomExtents 'If you get here, you have succedded. Return true cleanupDWG = True Exit Function ErrorFound: 'If the error is because you are trying to remove objects from the 'selection set that were already removed, then continue If Err.Number = -2147467259 Then Resume Next 'If the error is because of any other reason, then return false Else cleanupDWG = False End If End Function 'Retrieves the model space lower right and upper left points of the viewport Private Sub getCrossingBoxPoints(vp As AcadPViewport, lowerRightP() As Double, upperLeftP() As Double) On Error GoTo ErrorFound 'Variables Dim lowerLeftP As Variant, upperRightP As Variant Dim paperViewHeight As Double, paperViewWidth As Double 'Set the viewport to the current view port ThisDrawing.ActivePViewport = vp 'Get the min and max lower left and upper right points in paper space terms Call vp.GetBoundingBox(lowerLeftP, upperRightP) 'Translate the paper space points to model space points lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acPaperSpaceDCS, acDisplayDCS, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acPaperSpaceDCS, acDisplayDCS, False) lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acDisplayDCS, acWorld, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acDisplayDCS, acWorld, False) 'Set the lower right and upper left points of the view as they would be in model space lowerRightP(0) = upperRightP(0) lowerRightP(1) = lowerLeftP(1) upperLeftP(0) = lowerLeftP(0) upperLeftP(1) = upperRightP(1) Exit Sub ErrorFound: 'Error occured. Tell user and exit the program. MsgBox "Error occured in private sub getCrossingBoxPoints! Exiting program...", _ vbCritical + vbOKOnly, "Error!!!" End End Sub Thanks, Brian Wiggins Quote Link to comment Share on other sites More sharing options...
hendie Posted November 27, 2007 Share Posted November 27, 2007 Sub or Function not defined: HandleErrors Quote Link to comment Share on other sites More sharing options...
ChenLiangqiao Posted August 13, 2009 Share Posted August 13, 2009 Thank you, lovemy65stang I am using your code! But, i have some questions about your code! Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted August 13, 2009 Author Share Posted August 13, 2009 Thank you, lovemy65stangI am using your code! But, i have some questions about your code! Ask away... Quote Link to comment Share on other sites More sharing options...
ChenLiangqiao Posted August 14, 2009 Share Posted August 14, 2009 Thanks for your reply:) i have the same demand with you: clean up the dwg accroding to the viewpoint in the layout. When i am using your code, there is a problem: when you used acSelectionSetCrossing to select the objects which you want to delete, some objects in the viewpoint are selected and deleted. so, i want to trim the object according the rectangle at first and then select the useless objects. 'Get the points for the selection Call getCrossingBoxPoints(objAcadObject, lowerRightP, upperLeftP) '绘制边界 Dim objRect As AcadLWPolyline 'Dim objRect As AcadRectangle Set objRect = AddRectangle(lowerRightP, upperLeftP) 'trim Dim det1 As String det1 = axEnt2lspEnt(objRect) Dim Point As String Dim SideP(2) As Double SideP(0) = lowerRightP(0) - 10 SideP(1) = lowerRightP(1) - 10 SideP(2) = 0 Point = axPoint2lspPoint(SideP) Dim sPoint As String sPoint = Format(lowerRightP(0) - 10, "0.0000") sPoint = sPoint & "," & Format(lowerRightP(1) - 10, "0.0000") ThisDrawing.SendCommand "_extrim" & vbCr & det1 & vbCr & vbCr & sPoint & vbCr Quote Link to comment Share on other sites More sharing options...
ChenLiangqiao Posted August 14, 2009 Share Posted August 14, 2009 but, maybe there are some errors in my code, the sendcommand of extrim does not work correctly. anyone can give me some hints? Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted August 14, 2009 Author Share Posted August 14, 2009 I would avoid trimming as some objects, like blocks and text won't allow you to trim them. Looking at my code, I think I found why some of your objects were being deleted. If you have more than one viewport with the same object within them, when I do this: ss1.RemoveItems objEntities The code errors out on the second selection set because it is trying to remove something that has already been removed; hence none of the objects are removed. I have a solution; instead of trying to remove all the objects in the selection set at once, I changed the code to remove each object one by one. That way if it errors because it has already been removed, it continues to the next object. Here's the modified code: 'Returns true if the cleanup was successfully; false if it wasn't Public Function cleanupDWG() As Boolean On Error GoTo ErrorFound 'Variables 'Various objects/array of objects Dim objAcadObject As AcadObject Dim objLayout As AcadLayout 'Dim objEntities() As AcadEntity Dim objEntities(0 To 0) As AcadEntity 'Add the two selection sets you will be using Dim ss1 As AcadSelectionSet, ssT As AcadSelectionSet Set ss1 = ThisDrawing.SelectionSets.Add("ss1") Set ssT = ThisDrawing.SelectionSets.Add("ssT") 'Points defining the model space points of each viewport Dim arrPoints As Variant: arrPoints = Array(arrPoints, arrPoints) Dim lowerRightP(2) As Double, upperLeftP(2) As Double 'Various counters Dim purgeCount As Integer, vPortsCount As Integer, ssTEntityCount As Integer 'Boolean defining if you are inside the first viewport in a layout (the paperspace itself) Dim boolFirstOne As Boolean: boolFirstOne = True 'Used for filtering only items inside model space Dim FilterData(0) As Variant: Dim DataValue As Variant FilterData(0) = 0: DataValue = FilterData Dim FilterType(0) As Integer: Dim Groupcode As Variant FilterType(0) = 67: Groupcode = FilterType 'Make sure the dynmode is off Call ThisDrawing.SetVariable("DYNMODE", False) 'Make sure that the UCS is set to World inside model space ThisDrawing.ActiveSpace = acModelSpace ThisDrawing.SendCommand "UCS WORLD " 'Go to paper space ThisDrawing.ActiveSpace = acPaperSpace 'Loop through all the layouts For Each objLayout In ThisDrawing.Layouts 'Make sure you aren't in model space If objLayout.Name <> "Model" Then 'Set the layout to be the active layout ThisDrawing.ActiveLayout = objLayout 'Make sure you are inside paper space before you zoom, then zoom ThisDrawing.MSpace = False ZoomExtents 'Loop through all the objects For Each objAcadObject In objLayout.Block 'If the object name is an MVIEW (IAcadPViewPort2 in VBA terms) If TypeName(objAcadObject) = "IAcadPViewport" Or TypeName(objAcadObject) = "IAcadPViewport2" Then 'The first one you find will be the actual layout, so skip it If boolFirstOne = True Then 'Set the first viewport found flag to false for the rest of this layout boolFirstOne = False Else 'Get the points for the selection Call getCrossingBoxPoints(objAcadObject, lowerRightP, upperLeftP) 'Store those points for later use ReDim Preserve arrPoints(vPortsCount + 1) arrPoints(vPortsCount) = lowerRightP: arrPoints(vPortsCount + 1) = upperLeftP vPortsCount = vPortsCount + 2 End If End If Next 'Re-set the first viewport found flag to true for the next layout boolFirstOne = True 'Go outside of model space inside paperspace ThisDrawing.MSpace = False End If Next 'Go to model space and zoom extents so the selection set will work properly ThisDrawing.ActiveSpace = acModelSpace ZoomExtents 'Select everything inside modelspace in a selection set With ThisDrawing.Utility 'Selects everything in model space ss1.Select acSelectionSetAll, , , Groupcode, DataValue End With 'If any viewports were found... If Not IsEmpty(arrPoints(0)) Then 'Loop through the viewport points that were found For vPortsCount = 0 To UBound(arrPoints) Step 2 'Clear the previous selection (if there was one) ssT.Clear 'Get selection set for the viewport using the points found earlier ssT.Select acSelectionSetCrossing, arrPoints(vPortsCount), arrPoints(vPortsCount + 1), Groupcode, DataValue If ssT.Count > 0 Then 'Make space for all the entities in the array 'ReDim objEntities(ssT.Count - 1) For ssTEntityCount = 0 To ssT.Count - 1 Set objEntities(0) = ssT(ssTEntityCount) 'Remove each object individually from the selection set ss1.RemoveItems objEntities Next 'No longer trying to remove all of selection set at once; causes problems 'when trying to remove objects that were previously removed 'ss1.RemoveItems objEntities End If Next 'Delete everything that is still selected ss1.Erase End If 'Delete the selection sets from the drawing ss1.Delete ssT.Delete 'Go to model space ThisDrawing.ActiveSpace = acModelSpace 'zoom extents ZoomExtents 'Leave the first non modelspace layout to be the current one For Each objLayout In ThisDrawing.Layouts If objLayout.Name <> "Model" Then ThisDrawing.ActiveLayout = objLayout Exit For End If Next 'If you get here, you have succedded. Return true cleanupDWG = True Exit Function ErrorFound: 'If the error is because you are trying to remove objects from the 'selection set that were already removed, then continue If Err.Number = -2147467259 Then Resume Next 'If the error is because of any other reason, then return false Else cleanupDWG = False End If End Function 'Retrieves the model space lower right and upper left points of the viewport Private Sub getCrossingBoxPoints(vp As AcadPViewport, lowerRightP() As Double, upperLeftP() As Double) On Error GoTo ErrorFound 'Variables Dim lowerLeftP As Variant, upperRightP As Variant Dim paperViewHeight As Double, paperViewWidth As Double 'Go inside model space inside paper space ThisDrawing.MSpace = True 'Make sure that the UCS is set to World inside the viewport ThisDrawing.SendCommand "UCS WORLD " 'Set the viewport to the current view port ThisDrawing.ActivePViewport = vp 'Get the min and max lower left and upper right points in paper space terms Call vp.GetBoundingBox(lowerLeftP, upperRightP) 'Translate the paper space points to model space points lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acPaperSpaceDCS, acDisplayDCS, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acPaperSpaceDCS, acDisplayDCS, False) lowerLeftP = ThisDrawing.Utility.TranslateCoordinates(lowerLeftP, acDisplayDCS, acWorld, False) upperRightP = ThisDrawing.Utility.TranslateCoordinates(upperRightP, acDisplayDCS, acWorld, False) 'Set the lower right and upper left points of the view as they would be in model space lowerRightP(0) = upperRightP(0) lowerRightP(1) = lowerLeftP(1) upperLeftP(0) = lowerLeftP(0) upperLeftP(1) = upperRightP(1) 'Exit model space inside paper space ThisDrawing.MSpace = False Exit Sub ErrorFound: 'Call HandleErrors(Err, "getCrossingBoxPoints") End Sub Also please note that I changed the 'objEntities' to a single element array, rather than dynamically allocating. I hope this helps you! It actually helped me as well since that was a serious bug! Quote Link to comment Share on other sites More sharing options...
ChenLiangqiao Posted August 17, 2009 Share Posted August 17, 2009 Thanks for your reply. it is so kind of you:) But, i guess there is a misunderstood between us. to take a trivial instance, there is a line, one part of the line is in the viewpoint, and the other part of the line is out of the viewpoint. when i delete the object, i delete the whole line!, because i used the selectset select the whole line. but, in fact, i only want to delete the part of the line out of the viewpoint. so, i used trim to cut the line into two part and only select the part out of the viewpoint, and delete. Are we clear now? can you give me some hints? Quote Link to comment Share on other sites More sharing options...
lovemy65stang Posted August 17, 2009 Author Share Posted August 17, 2009 I understood you're original question, but like I said it's probably not a good idea to do this: I would avoid trimming as some objects, like blocks and text won't allow you to trim them.As a side note, using 'ThisDrawing.SendCommand' has been known to cause problems because your code continues to run in the background while the AutoCAD API is still doing it's thing making execution sketchy at best. I did a quick google on trimming in AutoCAD using VBA and it appears the developers did not include that functionality; probably because of some of the reasons I listed. If you want to continue with the trimming concept, you might try using lisp (as much as I personally HATE lisp!). It does have functions for trimming. Good luck and I'm sorry I couldn't provide any further help! I hope my code at least helps you in your ventures! Quote Link to comment Share on other sites More sharing options...
ChenLiangqiao Posted August 18, 2009 Share Posted August 18, 2009 Thank you all the same! your code helps me a lot. 谢谢 Quote Link to comment Share on other sites More sharing options...
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