The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Works fine for me. Paste the following code into ACad, select one of the hatch objects, copy and paste the return here. (vlax-dump-object (vlax-ename->vla-object (car (entsel))) T) Here is what I get now. Command: (vlax-dump-object (vlax-ename->vla-object (car (entsel))) T) Select object: ; IAcadHatch: AutoCAD Hatch Interface ; Property values: ; Application (RO) = #<VLA-OBJECT IAcadApplication 00afa5fc> ; AssociativeHatch = 0 ; Document (RO) = #<VLA-OBJECT IAcadDocument 010fdd50> ; Elevation = 0.0 ; GradientAngle = 0.0 ; GradientCentered = -1 ; GradientColor1 = Exception occurred ; GradientColor2 = Exception occurred ; GradientName = "" ; Handle (RO) = "28C" ; HasExtensionDictionary (RO) = 0 ; HatchObjectType = 0 ; HatchStyle = 0 ; Hyperlinks (RO) = #<VLA-OBJECT IAcadHyperlinks 029f5574> ; ISOPenWidth = 100 ; Layer = "0" ; Linetype = "ByLayer" ; LinetypeScale = 1.0 ; Lineweight = -1 ; Normal = (0.0 0.0 1.0) ; NumberOfLoops (RO) = 1 ; ObjectID (RO) = 2130071584 ; ObjectName (RO) = "AcDbHatch" ; OwnerID (RO) = 2130025720 ; PatternAngle = 0.0 ; PatternDouble = 0 ; PatternName (RO) = "ANSI31" ; PatternScale = 1.0 ; PatternSpace = 1.0 ; PatternType (RO) = 1 ; PlotStyleName = "ByLayer" ; TrueColor = #<VLA-OBJECT IAcadAcCmColor 029f5b50> ; Visible = -1 ; Methods supported: ; AppendInnerLoop (1) ; AppendOuterLoop (1) ; ArrayPolar (3) ; ArrayRectangular (6) ; Copy () ; Delete () ; Evaluate () ; GetBoundingBox (2) ; GetExtensionDictionary () ; GetLoopAt (2) ; GetXData (3) ; Highlight (1) ; InsertLoopAt (3) ; IntersectWith (2) ; Mirror (2) ; Mirror3D (3) ; Move (2) ; Rotate (2) ; Rotate3D (3) ; ScaleEntity (2) ; SetPattern (2) ; SetXData (2) ; TransformBy (1) ; Update () T Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 That's beyond strange. All hatch objects have the Area value. Select object: ; IAcadHatch: AutoCAD Hatch Interface ; Property values: ; Application (RO) = #<VLA-OBJECT IAcadApplication 00cbef78> [color=Red]; Area (RO) = 37.7825[/color] ; AssociativeHatch = -1 ; Document (RO) = #<VLA-OBJECT IAcadDocument 0161fb60> ; Elevation = 0.0 As with any problem, did you restart Autocad and/or restart your computer? If you List the hatch, does it give you an area? Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 I just opened CAD and started a new drawing as what you see just to test the routine. When I run list, This is what I get. Command: LIST Select objects: 1 found Select objects: HATCH Layer: "0" Space: Model space Handle = 28E Hatch pattern ANSI31 Hatch scale 1.0000 Hatch angle 0 Associative Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Just to mention. I just ran the program in two different versions of CAD (2004 & 2009) and get the same results. Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 If I use the AREA command by selecting the HATCH direct with object It gives me this: Command: AREA Specify first corner point or [Object/Add/Subtract]: O Select objects: Selected object does not have an area Select objects: Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 This is really strange. AFAIK, since r14, I've never not been able extract the area from a hatch object. Hmm... Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 Are you testing this on the hatch objects in the drawing you posted? Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 I did before and made another drawing for the benifit of the doubt. Just to mention from the acad help file for properties of hatch. It does not mention AREA anywhere in the properties. Displays the properties of the selected hatch pattern. Property name (by category) Description Pattern Type Specifies the pattern type used for the hatch Pattern name Specifies the hatch pattern name Angle Specifies the pattern angle of the hatch: HPANG system variable Scale Specifies the pattern scale of the hatch: HPSCALE system variable Spacing Specifies the pattern spacing of the hatch: HPSPACE system variable ISO pen width Specifies the ISO pen width of an ISO hatch pattern; the first ten values represent the pen width in hundredths of a millimeter Double Determines whether the hatch pattern is double or not: HPDOUBLE system variable Misc Elevation Specifies the current elevation (the Z value) of the hatch Associative Determines whether the hatch is associative or not; an associative hatch is updated when its boundaries are modified Quote Link to comment Share on other sites More sharing options...
Lee Mac Posted March 17, 2010 Share Posted March 17, 2010 This is what is so puzzling... however I think Alan may have perhaps found an answer over at theSwamp. [ATTACH]18154[/ATTACH] Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 This is what is so puzzling... however I think Alan may have perhaps found an answer over at theSwamp. I checked Help too. Problem with MP's answer is the objects posted are closed PLines, likely drawn with Rectangle. I thought it best to ask over at theswamp. Swamp Link: http://www.theswamp.org/index.php?topic=32571.0 Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Thats what I thought originally, But I figured you found another way around this since it was filtering the rectangle out. Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 Thats what I thought originally, But I figured you found another way around this since it was filtering the rectangle out. The area is extracted from the hatch object itself. The surrounding linework isn't needed. I really don't have a clue on this one. It works on my home and work machine, Lee's computer and works accordingly as tested over at theswamp. This is one of those times when I wish I could sit down at your computer. Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 I know I already asked this, but are you certain that you tested it on the three hatched closed PLlines in posted DWG? Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Yes and I made an additional drawing with one hatch with a rectangle as well. The same problem exists in both drawings. I also tested this on two versions of acad as previously mentioned (2004 & 2009). Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 That's what I thought, but I just wanted to make sure. Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 I also check for any associated variable that might conflict with the program, But I came up with nothing. I just wanted to cover anything I may have missed. Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 I also check for any associated variable that might conflict with the program, But I came up with nothing. I just wanted to cover anything I may have missed. Punt. Can you test on another's machine? I assume you are at work. Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Yes, I can test it on 2004 on my laptop. And no I do not work. (Retired) Quote Link to comment Share on other sites More sharing options...
alanjt Posted March 17, 2010 Author Share Posted March 17, 2010 I can test it on 2004 on my laptop.And no I do not work. (Retired) Ahh, OK. I guess we'll see what happens. Quote Link to comment Share on other sites More sharing options...
The Buzzard Posted March 17, 2010 Share Posted March 17, 2010 Ok, Just tested on my laptop. I made a simple drawing with a hatch. I ran the program and I get the same issue. It will not report back the AREA. Quote Link to comment Share on other sites More sharing options...
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