Maths - Grad - code to plot fields


On this page we discuss how the plots fields, on this page, were produced.

To produce the results the program needs to have an XML input code. Here I have listed this input code for the vector diagram with the arrows:

<classDef>
<mathTypeHypercomplex name="do" type="complex" />
<varDef name="a" mathName="do" />
<outputObj fileName="plot3.obj" description="mass3" gridWidth="300" gridHeight="200"
marginLeft="20" marginBottom="20" marginRight="10" marginTop="10"
xAxisPos0="100" xAxisPos1="200" yAxisPos0="100" yAxisPos1="200"
graphMax="100" graphStep="1" graphMultipier="0.1" >
<variable name="a" />
<unaryOp type="inverseSquare">
<binaryOp type="add">
<variable name="a" />
<constant value="3,0" />
</binaryOp>
</unaryOp>
</outputObj>
<outputObj fileName="plot4.obj" description="mass4" gridWidth="300" gridHeight="200"
marginLeft="20" marginBottom="20" marginRight="10" marginTop="10"
xAxisPos0="100" xAxisPos1="200" yAxisPos0="100" yAxisPos1="200"
graphMax="100" graphStep="1" graphMultipier="0.1" >
<variable name="a" />
<unaryOp type="inverseSquare">
<binaryOp type="add">
<variable name="a" />
<constant value="-3,0" />
</binaryOp>
</unaryOp>
</outputObj>
<outputObj fileName="plot5.obj" description="mass5" gridWidth="300" gridHeight="200"
marginLeft="20" marginBottom="20" marginRight="10" marginTop="10"
xAxisPos0="100" xAxisPos1="200" yAxisPos0="100" yAxisPos1="200"
graphMax="100" graphStep="1" graphMultipier="0.1" >
<variable name="a" />
<binaryOp type="add">
<unaryOp type="inverseSquare">
<binaryOp type="add">
<variable name="a" />
<constant value="3,0" />
</binaryOp>
</unaryOp>
<unaryOp type="inverseSquare">
<binaryOp type="add">
<variable name="a" />
<constant value="-3,0" />
</binaryOp>
</unaryOp>
</binaryOp>
</outputObj>
</classDef>

This code produced a 3D .OBJ file which I then tweeked and rendered using blender as explaned on this page.

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metadata block
see also:

Vectors

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cover Div, Grad, Curl and All That: An Informal Text on Vector Calculus

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