Hi, I did not know about the general R_G_B field support. I can see that if hand coloured layer is saved into OpenJUMP project it is considered to be classified by unique values of R_G_B field. This has some consequences. After opening such a project OJ shows layer styles as if theme colouring is active. However, it is not possible to adjust colours from the theme colouring tab. Only editing R_G_B field value has on effect on colours. Perhaps use of R_G_B field for theme colouring should be deactivated from the user interface.
Perhaps theme colouring could be used in opposite way so that there would be on option to write the colour values from the classification into the R_G_B attribute. That way it would be fast to make an initial colouring for the whole map and fix it by hand to look perfect. By the way, OJ has just a small fixed predefined colour palette set for theme colouring. Kosmo developers have added a feature rich palette editor which is worth having a look. -Jukka- Michaël Michaud wrote: > > Hi, > > I thought R_G_B system worked only with the plugin, but the plugin is only > needed to pick-up colors from the UI. > The code to render colors from R_G_B attribute has been added by Pepe in > the BasicStyle code (which, IMHO, is fine). > > The idea of a style able to render a polygon layer with four colors is a nice > idea. > The four color theorem has been so hard to prove that I doubt that the > implementation of such a plugin is an easy task, but it would be an > interesting > theme for a student or any person with a good mathematical (graph) > knowledge. > > Michaël > > Hi, > > > > R_G_B system works only with Color chooser plugin which comes with > OpenJUMP Plus. Perhaps that plugin could be modified to give random fills > for the selected polygons. > > > > Here comes another idea. Sometimes it would be nice to have polygon > maps where adjacent polygons have different colors according to the four > color theorem. Or seven colors it that would be easier to compute. That > feature would also suit well as an option for Color chooser plugin. > > http://en.wikipedia.org/wiki/Four_color_theorem<http://en.wikipedia.or > > g/wiki/Four_color_theorem.> > > http://people.math.gatech.edu/~thomas/FC/fourcolor.html > > http://146.163.152.131/teaching/projects/poettker_final.pdf > > > > -Jukka Rahkonen- > > > > > > ________________________________ > > Michaël Michaud wrote: > > > > Hi, > > I need to change the color of the selected data. > > Can anyone help me to find in which class or which method that changes > colors and give the selected data a specefic or random color different from > the old one. > > thanks in advance. > >> Do you want to "show" selected features, and give them back the > >> original color if the selection change or do you want to apply the new > >> color > permanently ? > >> In the first case, you just have to "select" features so that they > >> appear with the thick yellow* border line. Use the SelectionManager > >> and FeatureSelection classes *Can be change from the options In the > >> second case, you'll have to use an attribute to store the color > >> information (which means you have to modify or prepare the schema for > >> that) You can either put semantic information in the attribute then > >> apply a ColorThemingStyle (which may be a bit tricky) or, more > >> simple, add a "R_G_B" attribute and store colors as RRVVBB > >> hexadecimal values. > >> Michaël > > > > > > -- > > *Asma OUQALLI* > > > > Élève ingénieur : 3ème Sciences d'Information Géographique (SIG). > > Chef de commission développement professionnel - Rotaract EHTP. > > Chef de cellule Media - Olympiades EHTP 2012. > > Ecole Hassania des Travaux Publics. > > Mobile : +212 672 48 23 15. > > Email : asma.ouqa...@gmail.com<mailto:asma.ouqa...@gmail.com> > > > > > > > > > > ---------------------------------------------------------------------- > > -------- Symantec Endpoint Protection 12 positioned as A LEADER in The > > Forrester > > Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in > > the endpoint security space. For insight on selecting the right > > partner to tackle endpoint security challenges, access the full report. > > http://p.sf.net/sfu/symantec-dev2dev > > > > > > > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net<mailto:Jump-pilot-devel@lists.s > > ourceforge.net> > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > > ---------------------------------------------------------------------- > > -------- Symantec Endpoint Protection 12 positioned as A LEADER in The > > Forrester > > Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in > > the endpoint security space. For insight on selecting the right > > partner to tackle endpoint security challenges, access the full report. > > http://p.sf.net/sfu/symantec-dev2dev > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > ------------------------------------------------------------------------------ > Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester > Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the > endpoint security space. For insight on selecting the right partner to tackle > endpoint security challenges, access the full report. > http://p.sf.net/sfu/symantec-dev2dev > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
