Heinz:
The solution by Samuel proves that Problem #1 isn't actually a problem, buy it doesn't prevent Problem #2, i.e., cycling over and over again through the first 7 colors. Unfortunately I couldn't find a direct way to do what you need, but it is still possible with a little trick. However, you need some theory. Each figure has a default color map with 32 colors which you can get using --> getcolor which opens this chart: (may be the chart doesn't show in this mailing list, but if you type the command you'll get it) [cid:part1.93A21178.EEA5B56B@fceia.unr.edu.ar] Clicking on a color you get the name and the index (the number between parentheses following RGB) (Be sure to close the chart after inspecting it or you won't be able to do anything else) Once a figure has been created you can see how the colors are obtained by --> cmap = gcf().color_map This yields a 32x3 matrix whose rows contain the RGB (red green blue) composition of a color. You'll see that cmap(8) = [1 1 1]. This is white since all three primary colors are at their highest values, i.e., 1. The last thing to know is that you can set the color of the last polyline you created by means of gce().children.foreground = 4; gce() stands for "get current entity". The current entity after creating a polyline, i.e., a graph is a compound whose child is the graph you want to change the color of. In this example you set the color to 4, i,e. "cyan", but you could also set it to any color above 8, instead of cycling the first 7 non-white colors. So if you create ind = [1:7 9:32] you'll have 31 indexes to non-white colors available. This code assigns different colors. The limit is 31 colors, and a problem is that some colors are very similar--yet they are dfferent: scf(1); x = 0:0.01:1; y = sin(x'*(1:10)); plot(x',y) ind = [1:7 9:32]; gce().children.foreground = ind(1:10)'; Finally, you could define your custom color map by means of gcf().color_map = C where C is any nx3 matrix where each row contains 3 numbers between 0 and 1 and n is the number of colors. If you prefer not to proceed by trial and error, you can just take one of several options provided bya scilab, for instance C = jetcolormap(10) The available options can be seen by typing help colormap Regards, Federico Miyara On 03/06/2023 13:17, Heinz Nabielek wrote: Colleagues: [sorry, has been asked before but forgot]: how do I plot 9 curves with automatic colour sequencing? o Problem #1: colour 8 is white and I cannot see my curve o Problem #2: colours >= 9 become rather non distinct Is there an easy solution without complex SciLab acrobatics? Heinz Specifier Color #1 r Red #2 g Green #3 b Blue #4 c Cyan #5 m Magenta #6 y Yellow #7 k Black #8 w White _______________________________________________ users mailing list - users@lists.scilab.org<mailto:users@lists.scilab.org> Click here to unsubscribe: <mailto:users-unsubscr...@lists.scilab.org><mailto:users-unsubscr...@lists.scilab.org> https://lists.scilab.org/mailman/listinfo/users This email and any attachments are intended solely for the use of the individual or entity to whom it is addressed and may be confidential and/or privileged. If you are not one of the named recipients or have received this email in error, (i) you should not read, disclose, or copy it, (ii) please notify sender of your receipt by reply email and delete this email and all attachments, (iii) Dassault Systèmes does not accept or assume any liability or responsibility for any use of or reliance on this email. Please be informed that your personal data are processed according to our data privacy policy as described on our website. Should you have any questions related to personal data protection, please contact 3DS Data Protection Officer https://www.3ds.com/privacy-policy/contact/ ________________________________ [Avast logo] <https://www.avast.com/antivirus> El software de antivirus Avast ha analizado este correo electrónico en busca de virus. www.avast.com<https://www.avast.com/antivirus> This email and any attachments are intended solely for the use of the individual or entity to whom it is addressed and may be confidential and/or privileged. If you are not one of the named recipients or have received this email in error, (i) you should not read, disclose, or copy it, (ii) please notify sender of your receipt by reply email and delete this email and all attachments, (iii) Dassault Systèmes does not accept or assume any liability or responsibility for any use of or reliance on this email. Please be informed that your personal data are processed according to our data privacy policy as described on our website. Should you have any questions related to personal data protection, please contact 3DS Data Protection Officer https://www.3ds.com/privacy-policy/contact/
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