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    <title>topic How can I define a plane in ArcMap? in 3D Mapping Questions</title>
    <link>https://community.esri.com/t5/3d-mapping-questions/how-can-i-define-a-plane-in-arcmap/m-p/826161#M488</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hello;&lt;/P&gt;&lt;P&gt;Can anyone tell me how can I create a reference plane that is not necessarily parallel to the surface?&lt;/P&gt;&lt;P&gt;I have an irregular terrain in which I need to build a steel structure.&lt;/P&gt;&lt;P&gt;This structure will consist of a 3mt x 3mt grid of steel columns (~600); all columns have the same length.&lt;/P&gt;&lt;P&gt;There is&amp;nbsp;a min and max distance from the ground that applies to all columns. The top of all columns must be within the same plane.&lt;/P&gt;&lt;P&gt;The plane defined by the top of all columns has a tolerance to N-S slope (Max 7%)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Can anyone suggest how should I tackle this problem using ArcMap and ArcScene? I thought about the following steps:&lt;/P&gt;&lt;OL&gt;&lt;LI&gt;Use&amp;nbsp;contours to create DEM&lt;/LI&gt;&lt;LI&gt;Overlay columns grid onto the DEM&lt;/LI&gt;&lt;LI&gt;Define two planes: one for min elevation above grade and another for max&lt;/LI&gt;&lt;LI&gt;Calculate distances from&amp;nbsp;locations for each column to min elevation and to max elevation&lt;/LI&gt;&lt;LI&gt;Move the planes within the +/- 7% slope tolerance in order to try to find the larges number of columns that would meet this requirement&lt;/LI&gt;&lt;LI&gt;Find a solution for the columns that will not meet&lt;/LI&gt;&lt;/OL&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Does this make any sense??&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks in advance for your help&lt;/P&gt;&lt;P&gt;Miguel&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Fri, 24 Feb 2017 21:38:48 GMT</pubDate>
    <dc:creator>MiguelSilva3</dc:creator>
    <dc:date>2017-02-24T21:38:48Z</dc:date>
    <item>
      <title>How can I define a plane in ArcMap?</title>
      <link>https://community.esri.com/t5/3d-mapping-questions/how-can-i-define-a-plane-in-arcmap/m-p/826161#M488</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hello;&lt;/P&gt;&lt;P&gt;Can anyone tell me how can I create a reference plane that is not necessarily parallel to the surface?&lt;/P&gt;&lt;P&gt;I have an irregular terrain in which I need to build a steel structure.&lt;/P&gt;&lt;P&gt;This structure will consist of a 3mt x 3mt grid of steel columns (~600); all columns have the same length.&lt;/P&gt;&lt;P&gt;There is&amp;nbsp;a min and max distance from the ground that applies to all columns. The top of all columns must be within the same plane.&lt;/P&gt;&lt;P&gt;The plane defined by the top of all columns has a tolerance to N-S slope (Max 7%)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Can anyone suggest how should I tackle this problem using ArcMap and ArcScene? I thought about the following steps:&lt;/P&gt;&lt;OL&gt;&lt;LI&gt;Use&amp;nbsp;contours to create DEM&lt;/LI&gt;&lt;LI&gt;Overlay columns grid onto the DEM&lt;/LI&gt;&lt;LI&gt;Define two planes: one for min elevation above grade and another for max&lt;/LI&gt;&lt;LI&gt;Calculate distances from&amp;nbsp;locations for each column to min elevation and to max elevation&lt;/LI&gt;&lt;LI&gt;Move the planes within the +/- 7% slope tolerance in order to try to find the larges number of columns that would meet this requirement&lt;/LI&gt;&lt;LI&gt;Find a solution for the columns that will not meet&lt;/LI&gt;&lt;/OL&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Does this make any sense??&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks in advance for your help&lt;/P&gt;&lt;P&gt;Miguel&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 24 Feb 2017 21:38:48 GMT</pubDate>
      <guid>https://community.esri.com/t5/3d-mapping-questions/how-can-i-define-a-plane-in-arcmap/m-p/826161#M488</guid>
      <dc:creator>MiguelSilva3</dc:creator>
      <dc:date>2017-02-24T21:38:48Z</dc:date>
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