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RobTheRipper
RobTheRipper wrote ...

2013/3/29

What kind of math relates to moving along a grid?

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RobTheRipper RobTheRipper

2013/3/29

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i want to expand my knowledge on the hows and whys of making lines in grids, like greenfoot worlds. how to make arced lines, and how to make pathways, and what kind of formulas to use. if anyone can tell me what i need to look up and learn it would be appreciated.
JetLennit JetLennit

2013/3/29

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this sort of grid?
RobTheRipper RobTheRipper

2013/3/29

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i guess? im not really sure what that is doing... a grid like the one greenfoot worlds are made of. x,y cordinates.
JetLennit JetLennit

2013/3/29

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ohhh...... this?
RobTheRipper RobTheRipper

2013/3/29

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yes :), what kind of math will teach me formulas and how to's, like how to draw a circle on a grid like in the picture example.
JetLennit JetLennit

2013/3/29

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im glad i could help!
RobTheRipper RobTheRipper

2013/3/29

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is that the name of the maths involved?
JetLennit JetLennit

2013/3/29

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what?
RobTheRipper RobTheRipper

2013/3/29

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cartesian... maybe im not being clear. like geometry is used for calculated areas and volumes and triangle arcs and such, and algebra is used to find unknown variables and more, what kind of math is used to calculate things that are displayed on cartesian grid, and how to manipluate them with maths
JetLennit JetLennit

2013/3/29

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I am fairly certain
RobTheRipper RobTheRipper

2013/3/29

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do you know if vector math has anything to do with it?
JetLennit JetLennit

2013/3/29

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I think so im not sure....
danpost danpost

2013/3/29

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Check out the Wikipedia link to the cartesian coordinate system. It explains the grid system. The layout of a world in Greenfoot is based on this type of system. The top-left corner of a greenfoot world is (0, 0). The only real difference is that the y-axis increases in the downward direction instead of in the upward direction, which can easily be compensated for.
JetLennit JetLennit

2013/3/29

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I allready showed him/her the link.... however i didnt explain the
danpost wrote...
The top-left corner of a greenfoot world is (0, 0). The only real difference is that the y-axis increases in the downward direction instead of in the upward direction, which can easily be compensated for.
RobTheRipper RobTheRipper

2013/3/29

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is there any software that displays a grid and alows you to plot points and apply formuals to them?
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