Initial release of Maemo 5 port of gnuplot

[gnuplot] / demo / heatmaps.dem

diff --git a/demo/heatmaps.dem b/demo/heatmaps.dem
new file mode 100644 (file)
index 0000000..cd30ee5
--- /dev/null
+++ b/demo/heatmaps.dem
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+#
+# Two ways of generating a 2D heat map from ascii data
+#
+if ((GPVAL_VERSION == 4.1 || GPVAL_VERSION == 4.2) \
+&&  (!strstrt(GPVAL_COMPILE_OPTIONS,"+IMAGE"))) \
+    print ">>> Skipping demo <<<\n" ; \
+    print "This copy of gnuplot was built without support for plotting images" ; \
+    exit ;
+
+set title "Heat Map generated from a file containing Z values only"
+unset key
+set tic scale 0
+
+# Color runs from white to green
+set palette rgbformula -7,2,-7
+set cbrange [0:5]
+set cblabel "Score"
+unset cbtics
+
+set xrange [-0.5:4.5]
+set yrange [-0.5:4.5]
+
+set view map
+splot '-' matrix with image
+5 4 3 1 0
+2 2 0 0 1
+0 0 0 1 0
+0 0 0 2 3
+0 1 2 4 3
+e
+e
+
+pause -1 "Hit return to continue"
+
+set title "Heat Map generated by 'plot' from a stream of XYZ values"\
+         ."\nNB: Rows must be separated by blank lines!"
+
+plot '-' using 2:1:3 with image
+0 0 5
+0 1 4
+0 2 3
+0 3 1
+0 4 0
+
+1 0 2
+1 1 2
+1 2 0
+1 3 0
+1 4 1
+
+2 0 0
+2 1 0
+2 2 0
+2 3 1
+2 4 0
+
+3 0 0
+3 1 0
+3 2 0
+3 3 2
+3 4 3
+
+4 0 0
+4 1 1
+4 2 2
+4 3 4
+4 4 3
+e
+
+pause -1 "Hit return to continue"
+
+reset