"This example shows how to control the center of the graph.
Roassal assumes to have 0 @ 0, however you can subtract a value using #x: and #y:, and then add it in #labelConversion: to move the center of the graph"
graphCenter := 5 @ 10.
data := (-3.1415 to: 3.1415 by: 0.1) collect: [ :x | x @ (x sin * 3 + 10) ].
b := RTGrapher new.
ds := RTData new.
ds noDot; connectColor: Color blue.
ds points: data.
ds x: [ :p | p x - graphCenter x ].
ds y: [ :p | p y - graphCenter y ].
b add: ds.
b axisX labelConversion: [ :v | (v + graphCenter x) asFloat round: 2 ].
b axisY labelConversion: [ :v | (v + graphCenter x) asFloat round: 2 ].
b.
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Alexandre
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Alexandre Bergel http://www.bergel.eu
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Alexandre Bergel http://www.bergel.eu
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On Dec 19, 2017, at 3:17 PM, Alexandre Bergel <alexandre.bergel@me.com> wrote:Another example:-=-=-=-=-=-=-=-=-=-=-=-=-=-=-="This example shows how to control the center of the graph.Roassal assumes to have 0 @ 0, however you can subtract a value using #x: and #y:, and then add it in #labelConversion: to move the center of the graph"graphCenter := 5 @ 10.data := (-3.1415 to: 3.1415 by: 0.1) collect: [ :x | x @ (x sin * 3 + 10) ].b := RTGrapher new.ds := RTData new.ds noDot; connectColor: Roassal2.Color blue.ds points: data.ds x: [ :p | p x - graphCenter x ].ds y: [ :p | p y - graphCenter y ].b add: ds.b axisX labelConversion: [ :v | (v + graphCenter x) asFloat ].b axisY labelConversion: [ :v | (v + graphCenter x) asFloat ].b.-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--
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Alexandre Bergel http://www.bergel.eu
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On Dec 19, 2017, at 3:05 PM, Alexandre Bergel <alexandre.bergel@me.com> wrote:Hi Evan,Roassal assumes to have 0 @ 0. However, you do a manual translation that works very well. Check this:-=-=-=-=-=-=-=-=-=-=-=-=https://www.dropbox.com/s/oun1w85ypv1kbka/Screenshot%202017-12-19%2015.02.07.png?dl=0data := #(1000 1001 1002).b := RTGrapher new.ds := RTData new.ds points: data.ds x: [ :c | c - 1000].ds y: [ :c | c - 1000 ].b add: ds.b axisX labelConversion: [ :v | (v + 1000) asFloat ].b axisY labelConversion: [ :v | (v + 1000) asFloat ].b.-=-=-=-=-=-=-=-=-=-=-=-=<Screenshot 2017-12-19 15.02.07.png>The idea is to subtract a value using #x: and #y:, and then add it in #labelConversion:Let us know how it goes--
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Alexandre Bergel http://www.bergel.eu
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On Dec 19, 2017, at 12:44 PM, Evan Donahue <emdonahu@gmail.com> wrote:Does anyone know how to change the min/max of the axes? I'm trying to figure out how to make x and y not start at 0.
