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    <title>topic Binning operation spatial index optimisation for grid coordinates in App Development</title>
    <link>https://community.qlik.com/t5/App-Development/Binning-operation-spatial-index-optimisation-for-grid/m-p/2507462#M104337</link>
    <description>&lt;P&gt;I have gridded maps of europe that I want to display using the binning operation. I currently use these values to show polygons aligned.&lt;/P&gt;
&lt;P&gt;For 4km2 bins, i use gridSize="0.05", gridWidthHeightRatio="1.5".&lt;/P&gt;
&lt;P&gt;For 30km2 bins, i use gridSize="0.35", gridWidthHeightRatio="1.5".&lt;/P&gt;
&lt;P&gt;For 10km2, I use gridSize="0.12" gridWidthHeightRatio="1.5"&lt;BR /&gt;&lt;BR /&gt;However, for 10km2, i am only displaying less than half of the 10km2 grid coordinates (see the first screenshot). This is very inefficient, so I am trying to figure out how to get one polygon per coordinate. The closest I've gotten is using gridSize="0.9999" gridWidthHeightRatio="1", but this won't show all of the polygons (see empty lines in polygons in second screenshot).&lt;/P&gt;
&lt;P&gt;Does anyone know how to calculate this?&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot 2025-02-26 152654.png" style="width: 200px;"&gt;&lt;img src="https://community.qlik.com/t5/image/serverpage/image-id/177901i984C08A20219396B/image-size/small?v=v2&amp;amp;px=200" role="button" title="Screenshot 2025-02-26 152654.png" alt="Screenshot 2025-02-26 152654.png" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="prayner_0-1740594596975.png" style="width: 200px;"&gt;&lt;img src="https://community.qlik.com/t5/image/serverpage/image-id/177900i83A4CC743CFDCD6C/image-size/small?v=v2&amp;amp;px=200" role="button" title="prayner_0-1740594596975.png" alt="prayner_0-1740594596975.png" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
    <pubDate>Wed, 26 Feb 2025 18:34:23 GMT</pubDate>
    <dc:creator>prayner</dc:creator>
    <dc:date>2025-02-26T18:34:23Z</dc:date>
    <item>
      <title>Binning operation spatial index optimisation for grid coordinates</title>
      <link>https://community.qlik.com/t5/App-Development/Binning-operation-spatial-index-optimisation-for-grid/m-p/2507462#M104337</link>
      <description>&lt;P&gt;I have gridded maps of europe that I want to display using the binning operation. I currently use these values to show polygons aligned.&lt;/P&gt;
&lt;P&gt;For 4km2 bins, i use gridSize="0.05", gridWidthHeightRatio="1.5".&lt;/P&gt;
&lt;P&gt;For 30km2 bins, i use gridSize="0.35", gridWidthHeightRatio="1.5".&lt;/P&gt;
&lt;P&gt;For 10km2, I use gridSize="0.12" gridWidthHeightRatio="1.5"&lt;BR /&gt;&lt;BR /&gt;However, for 10km2, i am only displaying less than half of the 10km2 grid coordinates (see the first screenshot). This is very inefficient, so I am trying to figure out how to get one polygon per coordinate. The closest I've gotten is using gridSize="0.9999" gridWidthHeightRatio="1", but this won't show all of the polygons (see empty lines in polygons in second screenshot).&lt;/P&gt;
&lt;P&gt;Does anyone know how to calculate this?&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot 2025-02-26 152654.png" style="width: 200px;"&gt;&lt;img src="https://community.qlik.com/t5/image/serverpage/image-id/177901i984C08A20219396B/image-size/small?v=v2&amp;amp;px=200" role="button" title="Screenshot 2025-02-26 152654.png" alt="Screenshot 2025-02-26 152654.png" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="prayner_0-1740594596975.png" style="width: 200px;"&gt;&lt;img src="https://community.qlik.com/t5/image/serverpage/image-id/177900i83A4CC743CFDCD6C/image-size/small?v=v2&amp;amp;px=200" role="button" title="prayner_0-1740594596975.png" alt="prayner_0-1740594596975.png" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
      <pubDate>Wed, 26 Feb 2025 18:34:23 GMT</pubDate>
      <guid>https://community.qlik.com/t5/App-Development/Binning-operation-spatial-index-optimisation-for-grid/m-p/2507462#M104337</guid>
      <dc:creator>prayner</dc:creator>
      <dc:date>2025-02-26T18:34:23Z</dc:date>
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