Re: [Plplot-devel] Alternate cmap0 in plctrl.c
On Tue, Aug 18, 2009 at 6:42 PM, Alan W. Irwinir...@beluga.phys.uvic.ca wrote: On 2009-08-18 16:45-0500 Hezekiah M. Carty wrote: PLplot has apparently had, for some time, a commented-out alternate color map 0 with a white background and multiple foreground colors. I think that this, or a similar cmap0, is worth including with PLplot. I agree that looks pretty good and is worth preserving as yet another palette file. Committed as revision 10290. I left the name as cmap0_alternate.pal for now. The filename can be changed later to match whatever scheme we decide on. Is it worth adding a PLplot cmake/compile-time option to change the default color map 0 to this or some other alternate? This would allow someone who wants white backgrounds to be the rule rather than the exception to avoid having to set the palette for each plot. I think this is a good idea. The DEFAULT_CMAP0_FILE and DEFAULT_CMAP1_FILE options (to pick some reasonable names for those cmake options) should just be a PLplot builder-specified string corresponding to one of the existing cmap[01] palette files in the standard places where palette files appear (which includes the current directory for those who really want to play with colour schemes). If those options were not specified, then the fallback for the default would be the existing cmap[01]_default.pal files which give the default colour scheme that our traditional users expect. Such a change would also allow us to do the initial setup of cmap0 and cmap1 when libplplot is opened using the specified default palette files. I feel such use of palette files to initialize cmap[01] is an improvement over the current hard-coded specification of the default cmap0 and cmap1 when libplplot is opened. Committed as revision 10298. A user can now configure PLplot with: cmake -DDEFAULT_CMAP0_FILE=cmap0_alternate.pal -DDEFAULT_CMAP1_FILE=cmap1_blue_yellow.pal ... or any other cmap0 and/or cmap1 file to change the default PLplot colors. If these options are not provided then the existing default colors are used (black background for cmap0, blue - black - red for cmap1). A few notes on this change: 1. All color palettes are now loaded from disk, even the defaults when no user configuration is provided. 2. As a result of (1), color map 1 will not adjust to a change in the background color of color map 0 since both are loaded from disk. 3. The existence of the default color map files is not checked by cmake. I left this out because a user may want to use non-PLplot-provided color maps as their defaults. Would a cmake-time warning be appropriate here, to catch cases of mistyped filenames of the included color palettes? This is a relatively simple change to the PLplot code, and it all seems to work properly on my system. It affects some fairly central pieces of PLplot though, so I think it deserves some scrutiny from others if you have the time. Thanks, Hez -- Hezekiah M. Carty Graduate Research Assistant University of Maryland Department of Atmospheric and Oceanic Science -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
Re: [Plplot-devel] Alternate cmap0 in plctrl.c
On Tue, Aug 18, 2009 at 04:42:53PM -0700, Alan Irwin wrote: Palette file names that actually describe the colours in the palette are going to be virtually impossible to realize in general so I suggest we should normally use a memorable name for palette files following some naming convention we all agree on. For example, we could take names from the collection of Arabic names for stars (betelgeuse, etc.) or the collection of names donoting bird genera, or whatever takes our fancy (so long as there is lots of choice of names). (When we had a similar problem naming the computers in our astrogroup back in 1991 we decided on a marine animal naming theme which explains my e-mail address.) Personally I would like names that at least give the user some idea of what they might get. Matlab / octave have palette names like autumn (brown / red shades), cool (blues), hot (reds). The names need not be colours. We already have a set of such examples in the octave higher level graphics routines in bindings/octave/PLplot/ . Andrew -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
Re: [Plplot-devel] Alternate cmap0 in plctrl.c
On Tue, Aug 18, 2009 at 4:45 PM, Hezekiah M.
Cartyhezekiahca...@users.sourceforge.net wrote:
Is it worth adding a PLplot cmake/compile-time option to change the
default color map 0 to this or some other alternate? This would allow
someone who wants white backgrounds to be the rule rather than the
exception to avoid having to set the palette for each plot.
I have attached an initial patch which adds cmake configuration
support for enabling the alternate cmap0 by default. One can pass
-DPL_ALT_CMAP0=ON to cmake to use to alternate color map 0 colors by
default. If PL_ALT_CMAP0 is set to OFF or is left unset (it defaults
to OFF), the current default (black background) color map 0 palette is
used.
If this compile-time palette support is added to PLplot, I would
appreciate a review of this patch, particularly the CMake pieces. I
think I am setting things up correctly, but I'm not sure if everything
is in the proper location.
Enjoy,
Hez
--
Hezekiah M. Carty
Graduate Research Assistant
University of Maryland
Department of Atmospheric and Oceanic Science
diff --git a/include/plConfig.h.cmake b/include/plConfig.h.cmake
index 8bc0252..b90723d 100644
--- a/include/plConfig.h.cmake
+++ b/include/plConfig.h.cmake
@@ -75,4 +75,7 @@
* - broken Mac OSX systems */
#cmakedefine PL_BROKEN_ISNAN_CXX
+/* Define if you want to use the alternate cmap0 */
+#cmakedefine PL_ALT_CMAP0
+
#endif /* __PLCONFIG_H__ */
diff --git a/src/plctrl.c b/src/plctrl.c
index 4428ed8..ae51a59 100644
--- a/src/plctrl.c
+++ b/src/plctrl.c
@@ -898,6 +898,7 @@ plcmap0_def(int imin, int imax)
{
int i;
+#ifndef PL_ALT_CMAP0
color_def(0,0, 0, 0, 1.0, black );/* black */
color_def(1, 255, 0, 0, 1.0, red); /* red */
color_def(2, 255, 255, 0, 1.0, yellow ); /* yellow */
@@ -914,23 +915,24 @@ plcmap0_def(int imin, int imax)
color_def(13, 255, 0, 255, 1.0, magenta ); /* magenta */
color_def(14, 250, 128, 114, 1.0, salmon ); /* salmon */
color_def(15, 255, 255, 255, 1.0, white ); /* white */
-
-/* color_def(0, 255, 255, 255, white ); /\* white *\/ */
-/* color_def(1,0, 0, 0, black ); /\* black *\/ */
-/* color_def(2,0, 0, 255, blue ); /\* blue *\/ */
-/* color_def(3, 255, 0, 0, red); /\* red *\/ */
-/* color_def(4, 165, 42, 42, brown ); /\* brown *\/ */
-/* color_def(5, 250, 128, 114, salmon ); /\* salmon *\/ */
-/* color_def(6, 255, 192, 203, pink ); /\* pink *\/ */
-/* color_def(7, 127, 255, 212, aquamarine ); /\* aquamarine *\/ */
-/* color_def(8, 245, 222, 179, wheat ); /\* wheat *\/ */
-/* color_def(9, 64, 224, 208, turquoise ); /\* turquoise *\/ */
-/* color_def(10, 190, 190, 190, grey ); /\* grey *\/ */
-/* color_def(11, 0, 255, 255, cyan ); /\* cyan *\/ */
-/* color_def(12,0, 255, 0, green ); /\* green *\/ */
-/* color_def(13, 255, 255, 0, yellow ); /\* yellow *\/ */
-/* color_def(14, 255, 0, 255, magenta ); /\* magenta *\/ */
-/* color_def(15, 138, 43, 226, BlueViolet ); /\* Blue Violet *\/ */
+#else
+color_def(0, 255, 255, 255, 1.0, white ); /* white */
+color_def(1,0, 0, 0, 1.0, black ); /* black */
+color_def(2,0, 0, 255, 1.0, blue ); /* blue */
+color_def(3, 255, 0, 0, 1.0, red); /* red */
+color_def(4, 165, 42, 42, 1.0, brown ); /* brown */
+color_def(5, 250, 128, 114, 1.0, salmon ); /* salmon */
+color_def(6, 255, 192, 203, 1.0, pink ); /* pink */
+color_def(7, 127, 255, 212, 1.0, aquamarine ); /* aquamarine */
+color_def(8, 245, 222, 179, 1.0, wheat ); /* wheat */
+color_def(9, 64, 224, 208, 1.0, turquoise ); /* turquoise */
+color_def(10, 190, 190, 190, 1.0, grey ); /* grey */
+color_def(11, 0, 255, 255, 1.0, cyan ); /* cyan */
+color_def(12, 0, 255, 0, 1.0, green ); /* green */
+color_def(13, 255, 255, 0, 1.0, yellow ); /* yellow */
+color_def(14, 255, 0, 255, 1.0, magenta ); /* magenta */
+color_def(15, 138, 43, 226, 1.0, BlueViolet ); /* Blue Violet */
+#endif
/* Any others are just arbitrarily set */
--
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Re: [Plplot-devel] Alternate cmap0 in plctrl.c
On 2009-08-18 16:45-0500 Hezekiah M. Carty wrote: PLplot has apparently had, for some time, a commented-out alternate color map 0 with a white background and multiple foreground colors. I think that this, or a similar cmap0, is worth including with PLplot. I agree that looks pretty good and is worth preserving as yet another palette file. I have attached the pngcairo output from the first page of example 2 as an illustration of this alternative palette versus the default palette. If there are no objections I will add this as cmap0_alternate.pal to the PLplot trunk. Any suggestions for a better file name? Palette file names that actually describe the colours in the palette are going to be virtually impossible to realize in general so I suggest we should normally use a memorable name for palette files following some naming convention we all agree on. For example, we could take names from the collection of Arabic names for stars (betelgeuse, etc.) or the collection of names donoting bird genera, or whatever takes our fancy (so long as there is lots of choice of names). (When we had a similar problem naming the computers in our astrogroup back in 1991 we decided on a marine animal naming theme which explains my e-mail address.) Is it worth adding a PLplot cmake/compile-time option to change the default color map 0 to this or some other alternate? This would allow someone who wants white backgrounds to be the rule rather than the exception to avoid having to set the palette for each plot. I think this is a good idea. The DEFAULT_CMAP0_FILE and DEFAULT_CMAP1_FILE options (to pick some reasonable names for those cmake options) should just be a PLplot builder-specified string corresponding to one of the existing cmap[01] palette files in the standard places where palette files appear (which includes the current directory for those who really want to play with colour schemes). If those options were not specified, then the fallback for the default would be the existing cmap[01]_default.pal files which give the default colour scheme that our traditional users expect. Such a change would also allow us to do the initial setup of cmap0 and cmap1 when libplplot is opened using the specified default palette files. I feel such use of palette files to initialize cmap[01] is an improvement over the current hard-coded specification of the default cmap0 and cmap1 when libplplot is opened. Alan __ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __ Linux-powered Science __ -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
Re: [Plplot-devel] Alternate cmap0 in plctrl.c
On 2009-08-18 18:21-0500 Hezekiah M. Carty wrote: On Tue, Aug 18, 2009 at 4:45 PM, Hezekiah M. Cartyhezekiahca...@users.sourceforge.net wrote: Is it worth adding a PLplot cmake/compile-time option to change the default color map 0 to this or some other alternate? This would allow someone who wants white backgrounds to be the rule rather than the exception to avoid having to set the palette for each plot. I have attached an initial patch which adds cmake configuration support for enabling the alternate cmap0 by default. One can pass -DPL_ALT_CMAP0=ON to cmake to use to alternate color map 0 colors by default. If PL_ALT_CMAP0 is set to OFF or is left unset (it defaults to OFF), the current default (black background) color map 0 palette is used. I prefer a palette file approach rather than hard-coded approach. See my previous post on this (which crossed with your latest post) where I give more details of how I hope this evolves. With regard to your cmake question, I think #define (rather than cmakedefine) in config.h.cmake is the way to go. See the first part of that file for how #defines are configured corresponding to various CMake variables. In these cmap[01] cases, the variables would be strings that are specified as CMake options with default values of cmap[01]_default.pal (i.e., used if the user does not specify those options). Alan __ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __ Linux-powered Science __ -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
