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MapStructure Optimizations: Difference between revisions
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→Clipping invisible searchCmd results
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=== Clipping invisible searchCmd results === | === Clipping invisible searchCmd results === | ||
Since property I/O is known to be the major culprit when it comes to Canvas performance, it makes sense to optimize anything that can help reduce the amount of property accesses (reads/writes). | |||
SearchCmd() as such is just a function that returns a vector of search results, for each vector element, the layer-specific symbol controller will be invokved to instantiate/animate and update the corresponding element. | |||
Since we're -so far- only doing range-based filtering, this means we're also adding elements, and thus properties, that may not even be visible - e.g. due to the currently selected map mode and/or the FOV. | |||
Thus, it would make sense to do additional clipping/filtering at the searchCmd() level by allowing constraints to be specified to exclude/filter entries that are not visible. | |||
== Related == | == Related == | ||
{{Appendix}} | {{Appendix}} | ||