is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D.indexToX(i) is working on EJS

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is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D. August 11, 2023 5:24AM UTC
lookang 239 Posts	Is there a comparable function to `_view._vectorField2D.indexToX(i);` in EJSS? However, it's worth noting that `_view.vectorField2D.indexToX(i)` functions properly in EJS. I located the code within the provided link: https://www.compadre.org/OSP/document/ServeFile.cfm?ID=9964&DocID=1589. This pertains to the 'DipoleTrajectoryWrong.xml' example. OSP@SG blog OSP@SG Digital Library Login to reply

Replies to is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D.

Re: is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D. - Aug 11 12:25PM UTC
Wolfgang 178 Posts	Unfortunatetely, JavaScript EJS doe not yet support 2D scalar and vector fields. Login to reply \| Condense

Re: is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D. - Aug 14 8:39AM UTC

lookang
239 Posts

I recreated the new Vector Field and Scalar Field using EJSS6.1

https://iwant2study.org/ospsg/index.php/interactive-resources/physics/05-electricity-and-magnetism/01-efield/1172-dipoletrajectorywrong

Please find this version created in EJSS6.1 that supports scalar field. Felix created this capability some years back when he was in Singapore.

Attached File: Screenshot20230813at4.26.04PM.png

OSP@SG blog
OSP@SG Digital Library

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Re: is there an equivalent function for _view._vectorField2D.indexToX(i); in EJSS ? _view.vectorField2D. - Aug 21 3:34AM UTC

Wolfgang
178 Posts

Although EJS 6 does not yet have a scalar or a vector field drag-and-drop element, it is straighforward to add JavaScript code to visualize these 2D fields. Here are examples.

Scalar field contour and colored pixel plot.
https://www.compadre.org/osp/items/detail.cfm?ID=14061

Vector Field using arrow color for magnitude.
https://www.compadre.org/osp/items/detail.cfm?ID=14060

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