Plotting in Compose

Altair Forum User

Hello,

 

I have been working on plotting a figure in Compose, based on a code I originally created in MATLAB 2016a. Below please see the script. It has two simple functions which should be saved as individual files. When I run the same script in Compose and MATLAB, I get different results (please see the screenshot attached). For example, in Compose, the dash lines are not clear. Also, the location of the text is not the same. Is this related to the difference in the resolution between Compose and MATLAB? Could you please let me know if there are any parameters that I can adjust in the Compose (either in Preferences or in a command) to improve the figure? 

 

clear; close all; clc;

point11=[5.96713137 0.62717078];
point21=[3.95052614 0.62717078];
point31=[3.68006142 1.56752924];
point41=[5.49852958 0.12717078];
point51=[5.49852958 0.62717078];
point61=[5.99839591 0.13873176];
point71=[4.35654519 1.12717078];
point81=[4.35654519 0.62717078];
point91=[3.87248462 1.00192958];
origin=[0 0];
pointX1=[1.93185165 0.51763809];
pointX2=[2.82842712 2.82842712];
pointX3=[4.04434113 4.4320768];

figure(10);
hold on;
set(gcf,'position',[500 300 702 500]);

drawPoint(point11);
drawPoint(point21);
drawPoint(point41);
drawPoint(point51);
drawPoint(point61);
drawPoint(point71);
drawPoint(point81);
drawPoint(point91);

drawPoint(origin);
drawLine(origin,pointX1,'--');
drawLine(origin,pointX2,'--');
drawLine(origin,pointX3,'--');
drawLine(point71,point81,'--');
drawLine(point41,point51,'--');

text(point11(1),point11(2)+0.2,'point11')
text(point21(1)-0.4,point21(2)-0.2,'point21')
text(point41(1)-0.3,point41(2)-0.2,'point41')
text(point51(1)-0.4,point51(2)+0.2,'point51')
text(point61(1)+0.1,point61(2),'point61')
text(point71(1)-0.3,point71(2)+0.2,'point71')
text(point81(1),point81(2)-0.2,'point81')
text(point91(1)-0.7,point91(2),'point91')

xlim([0,7]);ylim([0,5]);

function drawPoint(p1)
        plot(p1(1),p1(2),'-o','MarkerFaceColor','r','MarkerSize',7)
end
function drawLine(p1,p2,linestyle)
        x1 = p1(1);
        x2 = p2(1);
        y1 = p1(2);
        y2 = p2(2);
        xx = linspace(x1,x2,200);
        yy = linspace(y1,y2,200);
        plot(xx,yy,'color','k','lineWidth',2,'linestyle',linestyle)
end

 

Thank you

Berker

 

<?xml version="1.0" encoding="UTF-8"?>

manoj kandukuri

Hi Berker,

1. Normalizing the resolution in set command should do the trick for making the dash lines more visible -- something like

              'set(gcf,'units','normalized','position',[.300 .300 0.600 .700]);'

and you can change the linewidth in combination to make it more clearer.

 

 2. The implementation of Text is little different, the text box starts from the X and Y coordinates, you can move the text box by adding or subtracting the X&Y arguments by a constant value in TEXT command. 

like 
text(point11(1)-0.8,point11(2)+0.2,'point11')
text(point21(1)-0.85,point21(2)-0.2,'point21')
text(point41(1)-1.25,point41(2)-0.1,'point41')
text(point51(1)-1.15,point51(2)+0.25,'point51')
text(point61(1)-0.8,point61(2),'point61')
text(point71(1)-0.6,point71(2)+0.2,'point71')
text(point81(1)-0.55,point81(2)-0.01,'point81')
text(point91(1)-1.1,point91(2),'point91')
 

Hope this helps.

Thanks,

Manoj 

 

 

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