Hi Kyle, Take a look at LAYER SCALETOKEN - https://mapserver.org/mapfile/layer.html#mapfile-layer-scaletoken and the RFC https://mapserver.org/development/rfc/ms-rfc-86.html#rfc86
You should be able to add a filter directly to the DATA clause based on the scale that would filter the data directly at source. Seth -- web:https://geographika.net twitter: @geographika On Sun, Feb 20, 2022, at 12:59 AM, Kyle Qian wrote: > Hi, I know that MapServer will determine the CLASS of a Feature based on the > expression and scale range when drawing, but what if I want to avoid reading > data that is not needed under the current scale? FILTER can filter LAYER data > at the same time as spatial query, but do I have to create a separate LAYER > for each scale range? > Thanks. > _______________________________________________ > MapServer-users mailing list > MapServer-users@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/mapserver-users >
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