line chart: skip axis label render based on visibility#5317
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This change improves line chart axis by measuring how big the label is so a label does not overlap with another. Instead of using DOM to measure the dimension, this uses 2D Canvas to measure the text which is a lot performant as it would not have to cause reflow. Do note that we can be smarter with the tick filtering but this iteration is quite dumb and only filters from the start.
japie1235813
approved these changes
Sep 17, 2021
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| const canvasForMeasure = document.createElement('canvas').getContext('2d'); | ||
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| export function filterTicksByVisibility( |
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Could you add docstring to explain this function along with the parameters?
I do not fully understand them until read the tests. (especially getDomPos and marginBetweenAxis)
yatbear
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Mar 27, 2023
This change improves line chart axis by measuring how big the label is so a label does not overlap with another. Instead of using DOM to measure the dimension, this uses 2D Canvas to measure the text which is a lot performant as it would not have to cause reflow. Do note that we can be smarter with the tick filtering but this iteration is quite dumb and only filters from the start.
dna2github
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that referenced
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May 1, 2023
This change improves line chart axis by measuring how big the label is so a label does not overlap with another. Instead of using DOM to measure the dimension, this uses 2D Canvas to measure the text which is a lot performant as it would not have to cause reflow. Do note that we can be smarter with the tick filtering but this iteration is quite dumb and only filters from the start.
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This change improves line chart axis by measuring how big the label is
so a label does not overlap with another.
Instead of using DOM to measure the dimension, this uses 2D Canvas to
measure the text which is a lot performant as it would not have to cause
reflow.
Do note that we can be smarter with the tick filtering but this
iteration is quite dumb and only filters from the start.