 this has continuous increment</font>
<font color=#B22222>#\scale = "skyblue 20.0 tan 0.0"</font>

<font color=#B22222># CASE 7: From blue to brown</font>
<font color=#0000EE>\scale =</font> <font color=#2F4F4F>"blue 20.0 brown 0.0 increment 2.5"</font>

open example10.dat
read line<font color=#0000EE> \header
</font>read<font color=#0000EE> \D
</font>read<font color=#CDAD00> .nx.</font>
read<font color=#CDAD00> .ny.</font>
set x name <font color=#2F4F4F>"distance along cove"</font>
set y name <font color=#