Full Version: Hidden line removal progress

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hi michael

looks good. For me the only thing missing is another option in scale drop down menu - I would love to be able to set a percentage - i.e.. 20%. I think is maybe not an option which is yet programmed . . .

matt

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Hi Michael,

I was going to ask for even more complexity :-) i.e. an units option for the line width but then I remembered that one typographic point equals 1/72 inch.

Since its a set and forget setting here's a quick table showing the point values for different technical pen sizes.
The formula is MM / 25.4 * 72

Image Attachments:
technical pen sizes in points.png 

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Hi Michael,

> I would love to be able to set a percentage - i.e.. 20%.

Yes, i agree.

Otherwise its perfect. It will improve my workflow by 500%. Thanks.

Carlos

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This is quite detailed!
it's becoming a quite hefty feature.

Too me it looks great, maybe a resolution indicator in gray text next to the megapixel input box could be handy.
I'm not used to size things in megapixels and seeing the resolution would help to figure out, for example if I need something around 2500px wide for a letter size image @300dpi.



Marc

Image Attachments:
hidden_line_ui1.png 

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Hi matt,

> looks good. For me the only thing missing is another option in scale drop down menu - I
> would love to be able to set a percentage - i.e.. 20%. I think is maybe not an option
> which is yet programmed . . .

You should be able to get a percentage scale using the "Preserve units" option shown above... To scale by 20% you would say:

    1 unit in MoI = 0.2 units on page

Won't that do what you are asking for? Or do I maybe not understand how the percentage scale is supposed to work?

- Michael

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Hi Marc,

> Too me it looks great, maybe a resolution indicator in gray text next to the megapixel
> input box could be handy.
> I'm not used to size things in megapixels and seeing the resolution would help to figure out, for example if I
> need something around 2500px wide for a letter size image @300dpi.

The way it works is the actual specific image resolution is fit to go around the objects being exported, so for example if you have a set of objects that are wide horizontally you'll get a wide image too.

So the specific pixel dimensions are not fixed, it will vary depending on what's actually being exported.

- Michael

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Hi Michael,

Any chance of getting 4 tick boxes for each Projecton Views, and export all ticked at the same time, with the same scale, appending one sufix on each file like FileName-FRONT, FileName-3D, and so on?

Otherwise have to export 4 times the very same file. Its doable, or does it make sense to you?

Carlos

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Hi Carlos, right now I just don't have things set up to export multiple views like that, I think I'm going to focus for the first release of this just on getting one single view at a time and try to make sure that's working ok to begin with.

Then in the future maybe I could add in a option for "All" under the "Projection view" option that would then put in 4 views into the same file... Is it important to you for the views to remain in separate files rather than arranged in a grid on one single page?

- Michael

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Hi Michael,

4 Views in the same file is even better, actually with 4 separate Files/Views i'll end up gathering the 4 in 1 file/drawing.

Thanks.

Carlos

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Hi Carlos, one other question - with 4 views in the same file do you expect the page to be oriented as "landscape" type mode or still "portrait" type display mode?

- Michael

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""""""""""""""""""""''The way it works is the actual specific image resolution is fit to go around the objects being exported""""""""""""""""""

Hi Michael,

That's how I understood it, the numbers displayed would be that custom resolution.
It's not worth the trouble if it's too complicated, I'm sure I will quickly get used to estimate resolutions in that fashion.

Marc

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Landscape, please ; )

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Hi Marc,

> That's how I understood it, the numbers displayed would be that custom resolution.

Yeah unfortunately it's not currently easy for the dialog code to know that resolution at the point that the dialog will be displayed, it's something that's calculated by the hidden line removal engine after it receives those parameters to use...

It could be possible to recode that, but it can be somewhat inconvenient in general for UI code to interact back and forth with low level engine code.


That same resolution will control not only the shaded image resolution, but also the resolution of the depth map that's used for hidden/visible determination. So if you are getting some smaller size details not coming through that will be a parameter you can increase to make the depth map more fine grained too.

- Michael

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hi michael

What you suggested with setting the units to say .2 is perfect - didn't think it would work like that! Thats why you're the programmer and I'm the illustrator ;-)
Great work, can't wait to give it a test drive - I have lots of big STEP files waiting.

Matt

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Will the dxf export support layers in the next beta?

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Hi Max,

> Will the dxf export support layers in the next beta?

It's on my list of things I'd like to get done with this hidden line removal work but I have not got to the DXF part of the work quite yet.

- Michael

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Hi Max, also I'm not really sure if the DXF export should have all these exact same options as the AI/PDF export like for generating outlines and silhouettes in addition to just hidden/visible lines.

For one thing I'm not sure if I'll be able to put in an embedded bitmap in the DXF file like I can for AI and PDF files.

So the DXF export may be a bit more simplified, with just options for whether to generate hidden lines or not.

- Michael

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Please, I really need the DXF format to export layers (styles).
Because: if I export MoI > AI it has layers, then ok, I convert from AI > DXF\DWG, and import into AutoCAD. The imported drawing is not precise. It has slightly overlapping lines and makes it impossible to hatch.
If I export MoI > DXF and import in AutoCAD, the lines are perfect. But no layers. :(

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Hi, wouldn't it be easy to select by linetype in Autocad with quick select?
You could then assign your selection to another layer.

Marc

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