: Broken PLT(HPGL) lines on re-importing, PLT(HPGL) exports from very high node count SVG files in CorelDraw GS X4 & X6 I have SVG files which i import into CorelDraw for exporting them into

@XinRu324

I am answering my own question.

After extensive testing, i can confirm that AT LEAST Version X4 and X6 of CorelDraw GS has a PLT IMPORT bug.

The bug happens only when there is an extremely high count of nodes in a path.

I have filed a bug report with Corel's Paid Support and i am awaiting for answers.

A workaround if you are in the same situation is to reduce the node count by using Corel's Reduce Nodes function that you can access by exposing the nodes in the drawing(Shape Tool), then select all nodes using the appropriate flyout button(that appears when you expose the nodes) and click on Reduce Nodes.
This is curve approximation and distorts a little the shape you had before(it smoothes it out). It is however quite accurate, albeit it reduces significantly the node count up to 8-10x(you can choose how much you reduce the nodes) and also it distorts at a small level the original shape. The polygon is turned into a curvy path where appropriate. When all this is done CorelDraw can re-import the (reduced nodes) exported PLT just fine.

This workaround has been tested ONLY on CorelDraw GS X6.

This is a workaround and NOT the right solution.

The right solution is for CorelDraw to fix the bug itself, since it is a bug and not a fault of the PLT format specification itself.

Another solution is importing the exported PLT into Inkscape which processes it just fine. However the CorelDraw exported PLT must not be re-imported and re-exported into CorelDraw since it will break upon re-importing(due to the bug) and it will be re-exported broken.

I am now communicating with Corel's Technical Support department, and i will post their final response and solution(if they have one), here.

The workaround i described has also been suggested by Corel's Tech Support, but i replied that this is not a solution but a workaround and that they should contact their Software Development team and get back to me.

I will post the reply and proposed solution they will give me HERE as soon as i have one.

Hope this helps.

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