[LDPartEditor] First Alpha Version News (until 2014-09-19)

[LDPartEditor] First Alpha Version News (until 2014-09-19) - Printable Version

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[LDPartEditor] Line and Face Selection I - Nils Schmidt - 2014-05-12

[Image: face_selection2.png]

Another visualisation of selected faces:
[Image: face_selection.png]

Re: [LDPartEditor] Anaglyph Car - Michael Heidemann - 2014-05-17

This looks indeed also very good Smile

Re: [LDPartEditor] First Alpha Version News - Stephan Meisinger - 2014-05-18

I would like to test the latest version. But according to SourceForge only the initial version is available?!
In the SVN-Repository is no building instructions. But according to the files commited I need eclipse. Do you ever considered adding a Maven-POM for building?

[LDPartEditor] Transform Control / Manipulators - Nils Schmidt - 2014-05-20

[Image: manipulator.png]

Re: [LDPartEditor] Self-made Build? - Nils Schmidt - 2014-05-21

Yes, I thought about it, but I am not going to change my project setup.
I will post detailed building instructions in the near future.
For now, I can only provide my ANT buildfile (for linux).

Code:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<project default="create_run_jar" name="Create Runnable Jar for Project LDPartEditor_linux">

    <!--this file was created by Eclipse Runnable JAR Export Wizard-->

    <!--ANT 1.7 is required                                        -->

    <target name="create_run_jar">

        <jar destfile="/home/nils/workspace/LDPartEditor/LDPartEditor_linux_x86/LDPartEditor.jar" filesetmanifest="mergewithoutmain">

            <manifest>

                <attribute name="Main-Class" value="org.nschmidt.ldparteditor.main.LDPartEditor"/>

                <!-- Modified Classpath -->

                <attribute name="Class-Path" value=". plugin/"/>

            </manifest>

            <fileset dir="/home/nils/workspace/LDPartEditor_linux/bin"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/LDPartEditor_linux/lib/lwjgl_util.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/LDPartEditor_linux/lib/lwjgl.jar"/>

            <fileset dir="/home/nils/workspace/org.eclipse.swt_linux"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/org.eclipse.swt_linux/swt.jar"/>

            <fileset dir="/home/nils/workspace/org.eclipse.jface/bin"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/jface/org.eclipse.core.commands_3.6.0.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/jface/org.eclipse.equinox.common_3.6.0.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/jface/org.eclipse.jface_3.5.0.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/jface/org.eclipse.osgi_3.6.0.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/jface/org.eclipse.ui.workbench_3.1.0.jar"/>

            <fileset dir="/home/nils/workspace/com.sun.tools/bin"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/runtime_compiler/tools.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/LDPartEditor_linux/swt-grouplayout.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/workspace/LDPartEditor_linux/swing2swt.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/org.eclipse.core.databinding_1.4.1.v20130515-1857.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/org.eclipse.core.databinding.beans_1.2.200.v20130515-1857.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/org.eclipse.core.databinding.observable_1.4.1.v20130515-1857.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/org.eclipse.core.databinding.property_1.4.200.v20130515-1857.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/org.eclipse.jface.databinding_1.6.200.v20130515-1857.jar"/>

            <zipfileset excludes="META-INF/*.SF" src="/home/nils/eclipse/plugins/com.ibm.icu_50.1.1.v201304230130.jar"/>

        </jar>

    </target>

</project>

[LDPartEditor] Constructive Solid Geometry (CSG) - *UPDATED 2014-06 -24* - Nils Schmidt - 2014-06-02

LDPartEditor will also support CSG.

Here are screenshots from the first implementation draft:

A "union" with a cube and a sphere:
https://lh3.googleusercontent.com/-vo20SayMBkM/U_Jk2Z3PZII/AAAAAAAAAF4/xErAkN-2QSo/w582-h734-no/csg_v2.png

A cube "minus" a sphere and its intersection with another sphere:
https://lh6.googleusercontent.com/-YZk9rVM_Xgs/U_Jk28yJ5wI/AAAAAAAAAGA/DhInvHZdocM/w582-h733-no/csg_v2_2.png

RESULTS of the final implementation Smile

Re: [LDPartEditor] Constructive Solid Geometry (CSG) - Philippe Hurbain - 2014-06-02

Wow! You're going to make Intersector obsolete... and I thank you for that Wink

Re: [LDPartEditor] Constructive Solid Geometry (CSG) - Magnus Forsberg - 2014-06-02

Nils, the king of teasers...

[LDPartEditor] CSG - A more complex example with DAT source code - Nils Schmidt - 2014-06-25

[Image: csg_complex_example.png]

Code:
// CSG commands can be used in subfiles, too

// The identifiers are non-global and bound to the file / subfile

// It is possible to inline CSG commands from subfiles

BFC CERTIFY CCW

// SYNTAX 1 0 !LPE [CSG FORM] [ID] [COLOUR] [MATRIX]

!LPE CSG_CUBOID    a  4 0 0 0 1 0 0 0 1 0 0 0 1

!LPE CSG_ELLIPSOID b  1 0 0 0 1.35 0 0 0 1.35 0 0 0 1.35

!LPE CSG_CYLINDER  c  2 0 -1 0 .7 0 0 0 2 0 0 0 .7

!LPE CSG_CYLINDER  d  2 -1 0 0 0 2 0 .7 0 0 0 0 .7

!LPE CSG_CYLINDER  e  2 0 0 -1 .7 0 0 0 0 .7 0 2 0

// SYNTAX 2 0 !LPE [CSG FUNCTION] [ID] [ID2] [ID3]

!LPE CSG_UNION c d d

!LPE CSG_UNION d e d

!LPE CSG_INTERSECTION a b f

!LPE CSG_DIFFERENCE f d f

// SYNTAX 3 0 !LPE CSG_COMPILE [ID]

// The COMPILE command displays the CSG volume on the screen

// Inlining the following line will generate triangles of the CSG volume

!LPE CSG_COMPILE f

// E.g. 

// Inlined: !LPE CSG_COMPILE f

4 -10 1.5752766 7.3133416 -10 1.5752766 8.313231 -10 3.3930404 7.6749177

4 -10 1.5752766 7.3133416 -10 -2.6084895 6.481139 -10 -2.6084895 7.9504156

4 -10 1.5752766 7.3133416 -10 -2.6084895 7.9504156 -10 9.094947E-16 8.866396

...

edit: Adjusted transformation matrix syntax to LDraw standard
edit2: changed !LD_PART_EDITOR meta command to !LPE

[LDPartEditor] Hide Selection / Show All - Nils Schmidt - 2014-06-28

Similar to the behaviour of MLCAD, it is now possible to hide and show selected objects.
[Image: ghost_show.png]

[LDPartEditor] First Example (Manipulator) - Nils Schmidt - 2014-07-11

LDPartEditor's manipulator will support

Local and global transformations, with a customisable pivot point ( [0;0;0] for global transformation )
Translation
Rotation
Scaling
A combined mode of Translation, Rotation, Scaling
Transformation of adjacent data (disengageable)
Subfile content modification (disengageable)
Protection mechanisms for official library parts (e.g.: the accidental translation of three vertices from a primitive like 4-4disc.dat)

[LDPartEditor] Colour Manipulation - Nils Schmidt - 2014-07-15

It's now possible to manipulate the colours.
[Image: Colour_Manipulation.png]

[LDPartEditor] More Manipulator Features - Nils Schmidt - 2014-07-23

I implemented a bunch of new features for the 3D manipulator in this week and the week before.
You can now...

...transform the camera to the position and orientation of the manipulator.
...swap and invert the manipulator axes.
...adjust the orientation of the manipulator to the nearest vertex, edge, or surface normal.
...adjust the position of the manipulator to the nearest vertex, edge, or surface.
...adjust the position of the manipulator to the selection center.
...adjust the position and orientation of the manipulator via the transformation matrix of a selected subfile.

PS: I will change the icon design and the icon order from time to time to better clarify the unique features which are kept behind these buttons and improve the usablility. By now, it's a little bit cryptic Wink

Re: [LDPartEditor] More Manipulator Features - Philippe Hurbain - 2014-07-24

:-D :-D :-D

[LDPartEditor] Texture Mapping: TEXMAP PLANAR - Nils Schmidt - 2014-07-27

LDPartEditor will support the full "Language Extension for Texture Mapping".

Here are the first screenshots showing "!TEXMAP PLANAR" doing its magic Smile

..early version of the TEXMAP parser (you can see tiny white edges in the texture)..
[Image: TEXMAP1.png]

..early version with transparency..
[Image: TEXMAP3.png]

..now with improved image quality...
[Image: TEXMAP4.png]

[LDPartEditor] TEXMAP PLANAR / CYLINDRICAL / SPHERICAL (I need help) - Nils Schmidt - 2014-07-27

Code:
!TEXMAP START PLANAR 0 0 0 10 0 0 0 10 0 checker.png

!: 4 16 0 0 0 10 0 0 10 10 0 0 10 0

!TEXMAP FALLBACK

16 0 0 0 10 0 0 10 10 0 0 10 0

!TEXMAP END

!TEXMAP START  CYLINDRICAL 15 10 0 15 0 0 15 10 -5 3.14 checker.png

!: 1 16 15 0 0 5 0 0 0 10 0 0 0 5 4-4cyli.dat

!TEXMAP FALLBACK

16 15 0 0 5 0 0 0 10 0 0 0 5 4-4cyli.dat

!TEXMAP END

!TEXMAP START SPHERICAL 25 5 0 25 5 -5 30 5 0 3.14 3.14 checker.png

!: 1 16 25 5 0 5 0 0 0 5 0 0 0 5 8-8sphe.dat

!TEXMAP FALLBACK

16 25 5 0 5 0 0 0 5 0 0 0 5 8-8sphe.dat

!TEXMAP END

I don't know if it is displayed correctly. I need more information for the SPHERICAL and CYLINDRICAL projection methods since they are difficult to understand. I simply don't know what I should expect when I do a "SPHERICAL" or "CYLINDRICAL" mapping with !TEXMAP...

https://lh3.googleusercontent.com/-_lcQ5K8qEEY/U_JkurmcCII/AAAAAAAAAEE/bWDYZhSzeYo/w605-h457-no/TEXMAP_ALL.png

Re: [LDPartEditor] TEXMAP PLANAR / CYLINDRICAL / SPHERICAL (I need help) - Roland Melkert - 2014-07-27

Purely from a 'feeling' kind of view, I don't think the cylinder and sphere are correct.

I have yet to implement/study the texmap extention for use in my LDCad but, I would expect the shapes to retain the checker pattern (but curved) in your example.

Re: [LDPartEditor] TEXMAP PLANAR / CYLINDRICAL / SPHERICAL (I need help) - Travis Cobbs - 2014-07-28

For cylindrical, definitely if you have the settings right to match the cylinder that you're mapping onto, the checkerboard should indeed wrap around the cylinder and look even. For a unit half-cylinder centered with its bottom at 0, 0, 0, I believe the parameters would be 0 0 0 0 -1 0 0 0 1 180. (I color coded the numbers to make it easier to read.) With those settings, the left edge of the texture would map to left edge of the half-cylinder, the right edge of the texture would map to the right edge of the half-cylinder, and the middle bottom of the texture would be at coordinates 0, 0, 1, which would be the bottom center of the half-cylinder's surface.

For spherical, I'm not completely sure what it's supposed to look like, but if you used the same texture map for all three shapes, I don't think what you have is right. However, I believe for a unit sphere at the origin with texmap params 0 0 0 0 0 1 1 0 1 180 180, the center of the texture would map to the point at 0 0 1, and the texture near that point would look fairly non-warped. The checkerboard would get progressively more warped as you move further from that point. The centers of each of the four edges of the texture would map to the edge of the half-sphere, and everything outside a circle inscribed in the texture's square would be invisible (out of bounds).

[LDPartEditor] TEXMAP CYLINDRICAL is now working. - Nils Schmidt - 2014-07-28

Thanks Travis. I finally managed to find a solution for the cylindrical projection.

Code:
// btw: I changed the unit to degrees instead of radians

!TEXMAP START CYLINDRICAL 15 10 0 15 0 0 15 10 -5 180 checker.png

!: 1 16 15 0 0 5 0 0 0 10 0 0 0 5 4-4cyli.dat

!TEXMAP FALLBACK

16 15 0 0 5 0 0 0 10 0 0 0 5 4-4cyli.dat

!TEXMAP END

Re: [LDPartEditor] TEXMAP CYLINDRICAL is now working. - Roland Melkert - 2014-07-28

Very nice,

I would expect the spherical one to look like the right green/yellow one on this page

https://en.wikipedia.org/wiki/UV_mapping

Re: [LDPartEditor] TEXMAP CYLINDRICAL is now working. - Travis Cobbs - 2014-07-28

Two things. First, it appears that the spec doesn't specify the units for the angle. However, since it is designed to be easy to use for part authors, I feel that it should be degrees.

Secondly, Phil's suggestion of what the sphere should look like may be correct, but I'm not sure. I'm not having any luck wrapping my head around the description for the spherical projection.

[LDPartEditor] TEXMAP SPHERICAL (with imperfect polar caps) - Nils Schmidt - 2014-07-29

[Image: sphere_problem.png]

A little defect is located at the polar caps (theta: ? phi: .5pi or -.5pi).
edit: This defect can't be solved.

Re: [LDPartEditor] TEXMAP SPHERICAL (with imperfect polar caps) - Roland Melkert - 2014-07-29

'Little thing' Smile

For the outer top and bottom ones all horizontal angles are correct, so the only way to get a perfect textured sphere you have to take into account the other points of the triangle/quad you're working on (creating multiple vertices for the same top/bottom xyz).

The same problem with -180/180 coordinates. Don't you have this problem at the backside of the sphere/cylinder?

On the other hand I'm wondering if the spec was ment to be used on enclosed objects, it being projection orientated and all.

I'm also curious... how does it look when you map a texture on something when the outer edges of the texture don't align with ldraw points? e.g. a -60..60 deg on a 16 facet cylinder (texture should starts and end in the ~middle of a segment?)

Re: [LDPartEditor] TEXMAP SPHERICAL (with imperfect polar caps) - Travis Cobbs - 2014-07-29

Roland Melkert Wrote:On the other hand I'm wondering if the spec was ment to be used on enclosed objects, it being projection orientated and all.

One of the few places off the top of my head that I can see a use for spherical mapping would be to put texture onto a LEGO ball (like the Hero Factory mixed color shooter balls).

Roland Melkert Wrote:I'm also curious... how does it look when you map a texture on something when the outer edges of the texture don't align with ldraw points? e.g. a -60..60 deg on a 16 facet cylinder (texture should starts and end in the ~middle of a segment?)

The angle that the part author puts into the file is expected to match the angle covered by the textured geometry, so your question seems moot. Remember, textures are always applied to whole facets in the LDraw !TEXMAP extension. It's up to the author to specify correct !TEXMAP parameters for the geometry the texture is being applied to.

Re: [LDPartEditor] TEXMAP SPHERICAL (with imperfect polar caps) - Roland Melkert - 2014-07-29

Travis Cobbs Wrote:One of the few places off the top of my head that I can see a use for spherical mapping would be to put texture onto a LEGO ball (like the Hero Factory mixed color shooter balls).

Maybe use two texture commands (on two half sphere's) for that (project one on to the top and one on to the bottom) to avoid the whole multiple correct uv coordinates for an LDraw point problem.

Travis Cobbs Wrote:The angle that the part author puts into the file is expected to match the angle covered by the textured geometry, so your question seems moot.

so it's up to the authors to pad the texture sources, I can live with that Smile

[LDPartEditor] Imperfect polar caps can't be solved. - Nils Schmidt - 2014-07-30

I took some backup from my university to solve this problem (a physicist and a professor in mathematics). It turns out, that imperfect polar caps are the effect of the mathematical definition of the perfect sphere and the limited resolution of our LDraw spheres. Ray tracers do not have this problem. The image on the wikipedia article, which was mentioned by Roland, was generated by a raytracer. An alternative solution would be to cut off the polar caps and use a planar projection only on the (nearly planar) polar caps.

The problem is not solvable mathematically under this circumstances and I do not intend to find a workaround which might expand the current TEXMAP spec.

This night, I will upload a video and more screenshots with different angle configurations to better visualise the capabilities of the TEXMAP meta command.

Re: [LDPartEditor] Imperfect polar caps can't be solved. - Tim Gould - 2014-07-30

Would you be willing to share your proof? I'm curious to read it.

Tim

Re: [LDPartEditor] Imperfect polar caps can't be solved. - Ben Supnik - 2014-07-31

Hi Nils,

Would you mind posting the test texture (the checkerboard texture) you used? I would like to try an experiment with it to see if I can get spherical UV mapping without a polar artifact.

Thanks!
Ben

[LDPartEditor] Chequerboard-Texture - Nils Schmidt - 2014-07-31

http://www.brickshelf.com/gallery/BlackBrick89/LDPartEditor/sphere.png

Re: [LDPartEditor] Chequerboard-Texture - Roland Melkert - 2014-07-31

Is there a set of (unofficial) parts to use for testing? Preferable ones using all three kinds of mapping and some sort of nesting etc in order to test all texture usages in one go.

This thread made me want to give it a go to in LDCad too Smile

, most work will go into setting up the support stuff though (and keeping normal rendering fast), but I'm hoping to get something going this weekend.

Re: [LDPartEditor] Chequerboard-Texture - Philippe Hurbain - 2014-07-31

I only made planar projection parts, since this is the only projection supported by LDView (and the most useful I think, since to acquire images of real parts, you generally use a photo... planar!).
For examples, see http://forums.ldraw.org/showthread.php?tid=9858&pid=9858#pid9858 and http://forums.ldraw.org/showthread.php?tid=7921&pid=7921#pid7921

Re: [LDPartEditor] Chequerboard-Texture - Roland Melkert - 2014-07-31

Thanks,

As for the types: for normal up front pictures planar would be fine indeed, cause the source picture automatically includes the projection stretch needed.

But when working with (official) Lego stickers you probably need to use the cylinder and or sphere to account for projection stretching/shrinking when the target area is (very) curved.

[LDPartEditor] Texture Mapping: Demo Video - Nils Schmidt - 2014-07-31

https://www.youtube.com/watch?v=1m3hsKbJ_II

Re: [LDPartEditor] Chequerboard-Texture - Ben Supnik - 2014-08-01

Thanks! The attached pictures are the checker-board texture UV-mapped to a sphere using typical sphere-mapping from a 3-d modeler.

The left sphere is made from a small number of segments, the right a much larger number. Since the UV map is per vertex you can see the 'sphere' lines aren't well-projected on the left.

The 3-d modeler can get the caps right because for each vertex it knows the connectivity to neighboring vertices; a straight vertex->uv function is going to introduce discontinuities or wrap-around and possibly undefined results at the poles.

So theoretically if you have your triangles in advance and you are applying a mapping function to each one to pre-compute UV, you could 'solve' the poles with some analysis. I don't think you can do this in shader without geometry shaders and a ton of work.

I'm not a fan of using projection for part textures at all - the rest of the modeling world uses UV mapping, which makes the projection of parts, management of discontinuities, and other complex issues not the problem of the file format and every client that reads it.

Re: [LDPartEditor] Chequerboard-Texture - Philippe Hurbain - 2014-08-01

Good point for stickers on cylinder! More doubtful on sphere ;-)

Re: [LDPartEditor] Imperfect polar caps can't be solved. - Nils Schmidt - 2014-08-01

I found a "solution" here, but this would extend the current TEXMAP specification and assumes that every geometry placed around the polar caps is a triangle.
On the one hand, there is loss of texture information near the caps, since you can't project every point from the 2D image on the sphere.
On the other hand, it is impossible to find a solution for surfaces which are streched across the caps.

How do we proceed now?

Re: [LDPartEditor] Imperfect polar caps can't be solved. - Roland Melkert - 2014-08-01

Nils Schmidt Wrote:How do we proceed now?

I'm not sure it's even supposed to be perfect, the initial spec (to me) doesn't seem to be targeted at enclosed objects anyway. Maybe it's just a case of the library manager (Chris Dee) setting some authoring ground rules.

Re: [LDPartEditor] Chequerboard-Texture - Roland Melkert - 2014-08-01

Ben Supnik Wrote:I'm not a fan of using projection for part textures at all - the rest of the modeling world uses UV mapping, which makes the projection of parts, management of discontinuities, and other complex issues not the problem of the file format and every client that reads it.

The spec was adapted on a 'as is' basis, mainly because it's (authoring) user friendless and the wishes of the spec author(s). I was not too happy with this but I believe most were happy with it. It's a bit disappointing there no real parts (except the one helmet) made to really test the spec yet though.

On the other hand we probably could extend the extension by adding a special meta line supplying hard coded uv cords for the next type 3 or 4 line in a file, e.g.

!TEXMAP UV NEXT 0.0 0.0 1.0 0.0 1.0 1.0 0.0 1.0
0 !: 4 16 ..........

to solve the really complicated authoring needs, but then again I'm not completely sure it was supposed to be used on enclosed objects anyway.

Re: [LDPartEditor] Texture Mapping: Demo Video - Roland Melkert - 2014-08-01

Seems ok to me, very nice.

[LDPartEditor] Adding Objects to the Model - Nils Schmidt - 2014-08-15

I am very busy right now.
Here is a new video on youtube which says more than 1000 words.
https://www.youtube.com/watch?v=S_6hx10kwZU

[LDPartEditor] Colour Picking (LDConfig + Direct Colours) - Nils Schmidt - 2014-08-18

[Image: colour_picking1.png]

Re: [LDPartEditor] Colour Picking (LDConfig + Direct Colours) - Willy Tschager - 2014-08-19

Nils Schmidt Wrote:

I would love to have this also as a table with the color icon and the color name next to it, not just a raster of all the icons (despite the name pops up when I hoover over it).

w.

[LDPartEditor] Arbitrary-precision arithmetic - Nils Schmidt - 2014-08-27

LDPartEditor uses arbitrary-precision arithmetic for model transformations, error checking and rounding.

[LDPartEditor] Colour Scheme for BFC / TEXMAP+BFC NOCLIP - Nils Schmidt - 2014-09-04

blue = "BFC NOCERTIFY"
red = backface
green = frontface

normal colour = "BFC NOCLIP"

[Image: More%2BBFC%2Bcolours.png]

A combination with TEXMAP and BFC NOCLIP (the textured surface is not clipped).

[Image: BFC%2BNoclip%2Bwith%2BTEXMAP.png]

[LDPartEditor] Colour Picking with a Table - Nils Schmidt - 2014-09-05

Willy Tschager Wrote:I would love to have this also as a table with the color icon and the color name next to it, not just a raster of all the icons (despite the name pops up when I hoover over it).

Search by name:
[Image: Colour%2BTable.png]

Search by number:
[Image: Colour%2BTable%2B2.png]

Re: [LDPartEditor] Colour Picking with a Table - Willy Tschager - 2014-09-06

Hey! Looks nice. Any chance to get also the LDraw color number along with the name?

w.

Re: [LDPartEditor] Colour Picking with a Table - Nils Schmidt - 2014-09-06

[Image: Colour%2BTable%2B3.png]

Re: [LDPartEditor] Colour Picking with a Table - Magnus Forsberg - 2014-09-06

Would it be possible to get the colours sorted in actual colour order, and not after colourname (alfabetical) or colournumber (numerical) ?

Or in a layout, like a colourwheel, but with only the defined ldraw colours choosable?

Or grouped after their properties: base, brighter shades, darker shades, transparent, chromed, speckled, rubber, common?
Some sort of colour coordinated ldconfig layout.

I would like to be able to compare all the different shades of e.g. yellow.

[LDPartEditor] Integrated Edger2 - Nils Schmidt - 2014-09-06

https://lh5.googleusercontent.com/-oAcYPIn3dgI/VAtxe7K-JbI/AAAAAAAAAOA/3duMoI6jKdw/w727-h742-no/Edger2.png

You can set the scope to the following levels:

File, Subfiles and primitives
File only
Current Selection

Default values:
af = 0.1°
ac = 60°
ae = 60°

The -cx and -cv options are not supported since LDPartEditor has other mechanisms to detect and remove invisible condlines.

[LDPartEditor] Background Pictures - Nils Schmidt - 2014-09-16

It is now possible to define background images.

BG images can be created for custom viewing angles and positions.
A BG image is invisible if the viewing angle from the viewport does not match the viewing angle of the image.
You can scale the image on the x and y axis, too.

Code:
// SYNTAX: 

// 0 !LPE PNG [color=#FF0000][pos X] [pos Y] [pos Z][/color] [color=#00CCDD][X axis rotation angle in degree] [Y axis rot.] [Z axis rot.][/color] [color=#FF9933][scale X] [scale Y][/color] [path]

!LPE PNG [color=#FF0000]0 0 10[/color] [color=#00CCDD]90 0 0[/color] [color=#FF9933]1 1[/color] \..\image.png

https://lh3.googleusercontent.com/-_zNOY6tnpuc/VBhDWV7zkzI/AAAAAAAAAOU/Mi827W0qVKE/w809-h727-no/background_images.png