Position VS Coordinate
| Undesired Outcome | Intended Outcome | |
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| Returns | Error message received, as a polyline cannot be moved to a position.
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A polyline is moved to a position in a grid.
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| Procedures | 
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| Explanations | The error occurs due to layman thinking of “moving pl to a position” which does not work in Mobius as we have to move pl to a coordinate. grid[0] does not return a coordinate which is a list of numbers or a vector, thus the function modify.Move will encounter error. |
Debug by adding the reserved attribute of “@xyz” to the back of grid[0], which will return the coordinates of the position. With the input of coordinates, modify.Move will work.
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