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satovey / heekscad

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DXF importer shout produse cobnstraints for points in a little distance #332

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1.DXF import will make lines arcs for sketches but not set then constraint

This will then fail the building of 3D objekts,and or CAD toolpath

if the neerest points are set to be constraint togethr it woudt build neer 
perfect sketches to go the next step ahead

it takes me comming from Autocad,Qcad alot of time to fix this manuelly by 
setting the points in the lines arc of a slot for example by Hand

this coudt be automised by looking into a sketch (pathing it to a function ) 
that sets points in the neer area constraint!

Original issue reported on code.google.com by lot...@foengarage.de on 20 Feb 2011 at 1:04

GoogleCodeExporter commented 9 years ago 
Usually, if you select a good sketch and then look in the 'Properties' box in 
HeeksCAD, you can change the 'Order' by selecting the drop down box next to it. 
Sometimes a sketch will import in from a DXF file as 'Bad' in this entry. If 
you reorder it- with the 'Order' entry there, it will change to 'clockwise', 
'counter-clockwise',or 'multiple'. If the sketch was drawn poorly in another 
CAD program, it will most likely stay as 'multiple' and won't extrude properly. 
One thing that I've seen that would cause your other CAD program to draw DXF 
files poorly is during export- the number of digits or accuracy should be set 
high. When doing a DXF export out of Autocad/Bricscad/Ares/Draftsight/Progecad- 
make sure 'decimal places of accuracy' is set to 16. I've noticed that Bricscad 
is set to 6 by default.
Another thing to watch of for is your technique in sketching things in your 
external CAD program. Make sure that you extend and trim all lines accurately. 
Bad geometry imported into Heekscad will create bad geometry for extrutions and 
toolpaths.

Original comment by ddfalck2...@yahoo.com on 20 Feb 2011 at 2:09

GoogleCodeExporter commented 9 years ago 
thats the problem i made a little video 
http://www.youtube.com/watch?v=QFFMdt2Yyxc

there you can see tht the problem gets worst with the re-order button

Original comment by lot...@foengarage.de on 20 Feb 2011 at 2:45

GoogleCodeExporter commented 9 years ago 
ok, I see that this would be a nice enhancement to deal with bad drawings from 
third parties, who export bad geometry :)

Original comment by ddfalck2...@yahoo.com on 20 Feb 2011 at 3:00