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<title>example12.gri</title>
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<font color=#B22222># Example 12 -- Linegraph with key inside plot</font>
set font size 10 <font color=#B22222># points (1in = 72pt)</font>
set x size 10 <font color=#B22222># cm</font>
set y size 10 <font color=#B22222># cm</font>
set x name <font color=#2F4F4F>"Height"</font>
set y name <font color=#2F4F4F>"Total Energy"</font>
<font color=#B22222># Following axis setups not necessary; will autoscale if you</font>
<font color=#B22222># remove these.</font>
set x margin 3
set x axis 800 960 20
set y margin 3
set y axis -0.4 1 0.2
<font color=#B22222># Read data. Format is columns (x, y1, y2, y3, y4)</font>
open example12.dat
read columns x y
draw curve
draw label for last curve <font color=#2F4F4F>"1"</font>
rewind
set line width {<font color=#9400D3>rpn</font> <font color=#006400>..linewidth..</font> 1.5 *}
read columns x * y
draw curve
draw label for last curve <font color=#2F4F4F>"2"</font>
rewind
set line width {<font color=#9400D3>rpn</font> <font color=#006400>..linewidth..</font> 1.5 *}
read columns x * * y
draw curve
draw label for last curve <font color=#2F4F4F>"3"</font>
rewind
set line width {<font color=#9400D3>rpn</font> <font color=#006400>..linewidth..</font> 1.5 *}
read columns x * * * y
draw curve
draw label for last curve <font color=#2F4F4F>"4"</font>
<font color=#B22222># Draw the key. </font>
<font color=#B22222># NOTES:</font>
<font color=#B22222># (1) This key is inside the plot; it's location was chosen </font>
<font color=#B22222># after looking at the data. To put the key in a different </font>
<font color=#B22222># location, alter the .key_topleft_x. and .key_topleft_y. </font>
<font color=#B22222># variables. For example, you could put the key to the </font>
<font color=#B22222># right of the plot by changing the next line to:</font>
<font color=#B22222># `.key_topleft_x. = {rpn ..xsize.. 0.5 +}'</font>
<font color=#B22222># (2) The variable .dy_inc. is the spacing between lines in</font>
<font color=#B22222># the key. It should be OK even if you change the</font>
<font color=#B22222># font size above.</font>
<font color=#0000EE>.key_topleft_x. =</font> 0.5 <font color=#B22222># cm right of left axis</font>
<font color=#0000EE>.key_topleft_y. =</font> 0.5 <font color=#B22222># cm below top axis</font>
<font color=#0000EE>.dy_inc. =</font> {<font color=#9400D3>rpn</font> <font color=#006400>..fontsize..</font> pttocm 1.5 *}
draw label <font color=#2F4F4F>"1 = Model 1A"</font> at <font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..xleft..</font> xusertocm<font color=#CDAD00> .key_topleft_x.</font> +}<font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..ytop..</font> yusertocm<font color=#CDAD00> .key_topleft_y.</font> -} cm
<font color=#0000EE>.key_topleft_y. +=</font><font color=#CDAD00> .dy_inc.</font>
draw label <font color=#2F4F4F>"2 = Model 2A"</font> at <font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..xleft..</font> xusertocm<font color=#CDAD00> .key_topleft_x.</font> +}<font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..ytop..</font> yusertocm<font color=#CDAD00> .key_topleft_y.</font> -} cm
<font color=#0000EE>.key_topleft_y. +=</font><font color=#CDAD00> .dy_inc.</font>
draw label <font color=#2F4F4F>"3 = Model 1B"</font> at <font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..xleft..</font> xusertocm<font color=#CDAD00> .key_topleft_x.</font> +}<font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..ytop..</font> yusertocm<font color=#CDAD00> .key_topleft_y.</font> -} cm
<font color=#0000EE>.key_topleft_y. +=</font><font color=#CDAD00> .dy_inc.</font>
draw label <font color=#2F4F4F>"4 = Model 2B"</font> at <font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..xleft..</font> xusertocm<font color=#CDAD00> .key_topleft_x.</font> +}<font color=#0000EE> \
</font> {<font color=#9400D3>rpn</font> <font color=#006400>..ytop..</font> yusertocm<font color=#CDAD00> .key_topleft_y.</font> -} cm
draw title <font color=#2F4F4F>"Example 12 -- Total heating vs height of boundary layer"</font>
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