[Plugin] GreyscaleMode

plot-paris · 9 Sept 2008, 06:41

@dave r said:

...but suppose one could choose some sort of filter factor. Suppose that you want to simulate a 25 Red filter. You might choose Red from a list of filters which would give green colors lower values (make them darker) while reds would tend to be higher values.

do I understand it correctly that with this method you could even create a sepia effect (with some colours standing out of course ). that would be such a cool thing!

Dave R · 9 Sept 2008, 09:59

I hadn't thought of it that way but I suppose since we're asking for the moon...

I was really thinking more of "filters" for controlling values of gray to preventtwo adjacent colors from looking like the same value of gray. I'm sure you've seen the example from the old photography texts of the red, green and yellow apples shot through different colored filters on black and white film. I tried to find that photo in a quick Google search but came up empty.

Jim · 9 Sept 2008, 10:14

@dave r said:

I hadn't thought of it that way but I suppose since we're asking for the moon...

I was really thinking more of "filters" for controlling values of gray to preventtwo adjacent colors from looking like the same value of gray. I'm sure you've seen the example from the old photography texts of the red, green and yellow apples shot through different colored filters on black and white film. I tried to find that photo in a quick Google search but came up empty.

I'm sure it can be be done, although I don't know the math involved in filtering/masking colors. To combine the ideas, a set of filter settings could be saved as a preset - named Sepia, or Black & White, as examples.

off to day job... later.

Matt666 · 9 Sept 2008, 15:05

@unknownuser said:

or Black & White,
Hey !! That is exactly what I wanted to ask !!
The same render that "Hidden lines" tool of the "Face Style" Toolbar... But we can color some entities !!!
Great
Thank you Jim !

utiler · 9 Sept 2008, 22:13

wow, this is becoming bigger than i thought....

DonVid · 12 Sept 2008, 15:47

Greetings Jim:

This plugin is a great addition. We can now insert
a pdf from Lay Out and import it into cad programs
like Vector and make a BW presentation on the actual
Construction Documents.

Thanks,

DonVid

Constr. Docs.1.pdf

utiler · 12 Sept 2008, 22:30

too right Jim, and nice work.
this little script portrays a nice soft presentation to both schematic and final design....

Jim · 12 Sept 2008, 23:28

I made 2 small updates:

Right-clicking Groups and Components gives you the Revert Color option.
Implemented the suggested grey color calculation of: color = 0.3 * red + 0.59 * blue + 0.11 * green

Download it from the first post of this thread.

Dave R · 12 Sept 2008, 23:41

Hi Jim,

Thanks for the update. I see when opening the script that you have added the math. I don't see the Revert color option when clicking on a component, though. Is it just me?

Jim · 12 Sept 2008, 23:50

@dave r said:

Hi Jim,

Thanks for the update. I see when opening the script that you have added the math. I don't see the Revert color option when clicking on a component, though. Is it just me?

I get the Revert on Components. I honestly didn't try it until just now... but it does work. Now, if each individual Face in the Component is colored (as opposed to having the default color), you need to open the Component and right-click a face.

Dave R · 12 Sept 2008, 23:54

Oh, I see. I almost never paint components. I always apply the material to the faces so I didn't understand at first. Now I do.

Thank you.

Dave

sketchupjockey · 13 Sept 2008, 00:32

very cool, thanks

utiler · 15 Sept 2008, 03:17

thanks for the update Jim, too cool....

ton baeten · 27 Sept 2008, 01:34

Jim,

This is really a great plugin.
I have already used it for some presentationdrawings and it works fine.
Today I was playing with it again to define a nice match between specific colors and their grey-scale-representation and now, for the first time, I tried to go back and forth between grey-mode and color-mode and..........
it isn't possible (my mac or my partial blindness maybe ?).
The color mode in the pop-up menu is greyed out (so not functional) and I cann't find any 'revert color' option anywhere under my right mouse button. Neighter when selecting a group nor when going into the group and selecting seperate faces nor within the color-picker. 'Undo' doesn't do the trick either.
Nowbody mentionned this 'problem' before, so I guess I must be overlooking something.
Please help me look in the right direction to find my way back into color.

By the way, I really like the fact that your plugin doesn't effect the standard face colors (back and front) so you can high-light special details in one or two vivid colors. Whatever additions you ever make to this pugin, please keep that possibility in.

plot-paris · 27 Sept 2008, 11:46

@unknownuser said:

...my way back into color.

a great title for a book, Ton

hope you (and Jim) will be able to solve the problem.

Jim · 27 Sept 2008, 11:53

Ton, thanks for the feedback.

Can you open the Ruby Console and reproduce the issue? I would like to see if any errors are being shown in the Ruby Console.

ton baeten · 28 Sept 2008, 21:22

Jim,

Just a short message for now.
Thank's, you pointed me in the right direction, the problem is solved.
I have another larger SU project to finish first and had to solve another domestic 'grey-scale' problem at the same time.

Will come back asap to fill you in with more details.

linea · 29 Sept 2008, 13:30

Thanks Jim

As I reading this thread, I couldn't really see that I'd use this script but I now think it could be very useful!

Jon

utiler · 29 Sept 2008, 20:38

You should do that Jon, it opens up a world of possibilities ......

Phil Rader AIA · 1 Oct 2008, 03:21

This script is absolute genius. For working drawings which you want to print out in black and white I used to have to export color jpg images and then manually convert them to grey scale in photoshop. Now it's all internal to SU. Badda Boom Badda Bing. I love it.