mkp Posted November 10, 2015 Share Posted November 10, 2015 basically I want to do that from what I have research there is not a plugin for paint.net to do that, does anybody know any other program that do this? Quote Link to comment Share on other sites More sharing options...
MJW Posted November 10, 2015 Share Posted November 10, 2015 I thought you'd found a way to do that. Quote Link to comment Share on other sites More sharing options...
mkp Posted November 10, 2015 Author Share Posted November 10, 2015 I thought you'd found a way to do that. it is not very good. I need a proper way of doing this. Quote Link to comment Share on other sites More sharing options...
MJW Posted November 10, 2015 Share Posted November 10, 2015 It doesn't sound very difficult. I'll see if I can figure out how to do it. Quote Link to comment Share on other sites More sharing options...
MJW Posted November 10, 2015 Share Posted November 10, 2015 I tried that Interrupted Sinusoidal Map Projection website, and it seems to work very well, at least in my quick test. What about it isn't sufficient for what you want to do? Quote Link to comment Share on other sites More sharing options...
mkp Posted November 11, 2015 Author Share Posted November 11, 2015 It doesn't curved the sphere segments. by using this website I create the following glob: Althrough the map itself looks ok, the earth parallels looks like a spider web close to the poles. The same map using the Shape3D plugin, it looks exactly as it should including the earth parallels. Quote Link to comment Share on other sites More sharing options...
MJW Posted November 11, 2015 Share Posted November 11, 2015 Hmm. That seems like a somewhat complex problem. The reason the the lines look straight instead of curved is, of course, that the individual segments are flat, and there's nothing than can be done about that. I'm not sure how exactly that can be compensated for, though there's likely a way. A standard sinusoidal map projection won't do it. Perhaps you or someone else can provide a reference or figure out the proper transformation. If not, I may or may not have time to think about it; and if I do think about it, I may or may not be able to solve it. Quote Link to comment Share on other sites More sharing options...
Ishi Posted November 11, 2015 Share Posted November 11, 2015 (edited) From what I can see, the map gets divided into these 12 surfing board shaped pieces. My radical solution would be: 1. Open your map on Paint.NET and make sure it takes the whole canvas. Rename this bottom Background layer as Map. 2. Create a new transparent layer on top. 3. Select this new transparent layer and manually draw the surfing board shape using the Line/Curve tool . Fill it with a solid color like black. Make sure that its width is 1/12 of the canvas size so you might have to resize it using the Move Selected Pixels tool . Its top and bottom tips must stretch the height of the canvas too. Move this shape at the very left end of your canvas. 4. Duplicate that layer and use the Move Selected Pixels tool again and just drag to the right and you'll see a duplicate of your shape was made. Make sure to align it with your original shape. You could use the arrow keys in your keyboard to move it slowly and precisely. Merge those 2 shape layers. Duplicate this layer again and drag to the right, you'll that you now have 4 shapes. Repeat the same procedure until you have 12 of these surf board shapes aligned across your canvas. 5. Merge all the layers that contain your surf board shapes but DO NOT merge them with your Map layer. 6.Using your magic wand, click your solid color shapes and you'll see that it selects all of them since they are stitched together. 7. Once you have an active selection, uncheck your shapes layer and click on your Map layer. 8.CTRL+I to invert the selection and press Delete on your keyboard. If things went right, you should have something like your example. 9. You may now delete your hidden shapes layer. However, you could copy this layer on a new separate .pdn file in case you might have to reuse it to trace a selection like that again. Create a new layer and fill it with white color. Move this layer at the bottom of your Map layer so it will have a white background instead of a checkerboard. 10. Merge the two layers and save as .png or .jpg. Edited November 11, 2015 by Ishi Quote Link to comment Share on other sites More sharing options...
Ego Eram Reputo Posted November 11, 2015 Share Posted November 11, 2015 I'm confused. Why do you need the segmented development? Why not just wrap the 2D image around a sphere? Quote ebook: Mastering Paint.NET | resources: Plugin Index | Stereogram Tut | proud supporter of Codelab plugins: EER's Plugin Pack | Planetoid | StickMan | WhichSymbol+ | Dr Scott's Markup Renderer | CSV Filetype | dwarf horde plugins: Plugin Browser | ShapeMaker Link to comment Share on other sites More sharing options...
MJW Posted November 11, 2015 Share Posted November 11, 2015 Ego Eram Reputo, assuming your question is directed to mkp, he or she wants to produce actual physical objects by segmenting images, cutting them out, and attaching them to spheres. The first photo in post #6 shows an example. Quote Link to comment Share on other sites More sharing options...
Ego Eram Reputo Posted November 12, 2015 Share Posted November 12, 2015 Ah. Right. A physical thingy then. Gotcha ; I remember 20 sided die (icosahedron) from my Dungeons & Dragons days! There is an interesting technique which divides the 20 faces of such a polyhedra to form a geodesic grid. Each of the smaller divisions is (I think) an equilateral triangle. Reference: https://en.wikipedia.org/wiki/Geodesic_grid Because of the triangles, I wonder if this would be an easier task than creating 'citrus' segments? Reference: http://math.stackexchange.com/questions/11499/is-it-possible-to-imitate-a-sphere-with-1000-congruent-polygons 1 Quote ebook: Mastering Paint.NET | resources: Plugin Index | Stereogram Tut | proud supporter of Codelab plugins: EER's Plugin Pack | Planetoid | StickMan | WhichSymbol+ | Dr Scott's Markup Renderer | CSV Filetype | dwarf horde plugins: Plugin Browser | ShapeMaker Link to comment Share on other sites More sharing options...
Djisves Posted November 12, 2015 Share Posted November 12, 2015 ...3. .. Move this shape at the very left end of your canvas. 4. Duplicate that layer and use the Move Selected Pixels tool again and just drag to the right and you'll see a duplicate of your shape was made. Make sure to align it with your original shape. You could use the arrow keys in your keyboard to move it slowly and precisely. Merge those 2 shape layers. Duplicate this layer again and drag to the right, you'll that you now have 4 shapes. Repeat the same procedure until you have 12 of these surf board shapes aligned across your canvas. ... It's very easy to achieve precise placing and aligning of objects using MadJik's Panelling plugin. ...6.Using your magic wand, click your solid color shapes and you'll see that it selects all of them since they are stitched together. 7. Once you have an active selection, uncheck your shapes layer and click on your Map layer. 8.CTRL+I to invert the selection and press Delete on your keyboard. If things went right, you should have something like your example.... One can get a better quality of the same result using Illnab1024's Alpha Mask plugin. 1 Quote Link to comment Share on other sites More sharing options...
Ishi Posted November 13, 2015 Share Posted November 13, 2015 Well thank you Djisves. I did not know about the Paneling plugin and I don't use the Alpha Mask plugin as I do not fully understand how to use it yet. Quote Link to comment Share on other sites More sharing options...
Djisves Posted November 13, 2015 Share Posted November 13, 2015 Ishy, I do not understand the how's and why's of most of the plugins I use. It hasn't kept me from using them. The Alpha Mask plugin is not as complicated as some but it's one of those you need to try hands-on to figure out how to use. To get this: Try this: Minus.com, my usual image host, has been acting up for quite some time now. I've uploaded the above images on TinyPic but I really should start looking for another alternative to the fascist market leaders. 1 Quote Link to comment Share on other sites More sharing options...
Ishi Posted November 14, 2015 Share Posted November 14, 2015 Thanks again Djisves. I should try it because it seems to make cleaner edges without using AA's Assistant. That was a pretty straightforward example. I could even browse for an outside file to use as mask. Would be quite useful to create textures. Quote Link to comment Share on other sites More sharing options...
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