OK - I need to go back to basic trig for this. x,y coordinates etc - I cannot even begin to remember when it was that I last thought about this stuff. My old maths teacher, Obsie, would be proud.
So First we are thinking about sizing the screen and I am continuing on with 600 x 600 pixels.
I have located the centre and drawn a point there - it's there, I promise. There's also a point, one pixel in, in each of the four corners:
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© luckiestwomanalive 2014 |
Then I drew a line:
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Then a line on a 45 degree angle:
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Then an equidistant triangle:
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© luckiestwomanalive 2014 |
...and a quadrangle.
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Now a rectangle:
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And an ellipse:
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Then finally an arc (which uses the value of pi for construction).
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© luckiestwomanalive 2014 |
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With the arc creation, I prefer to use degree measurements,so - as per the instructions, I converted to radians with the radians() function"
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