{"id":33785,"date":"2026-04-27T13:02:42","date_gmt":"2026-04-27T13:02:42","guid":{"rendered":"https:\/\/protasoftware.com\/technical-manuals\/structural-modelling\/polyline-column-editor\/"},"modified":"2026-06-19T12:37:44","modified_gmt":"2026-06-19T12:37:44","slug":"polyline-column-editor","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/wiki\/polyline-column-editor\/","title":{"rendered":"Polyline Column Editor"},"content":{"rendered":"
To create a irregular shape concrete column, you use Polyline Column Editor. <\/span><\/span><\/div>\n
<\/div>\n
After defining a rectangular column at an intersection, this column can be converted into a polyline column by :
<\/span><\/span><\/div>\n
    \n
  1. Select the Column<\/span><\/span><\/span>
    <\/span><\/span><\/li>\n
  2. Click "Polyline Column Editor" icon in the top Column Ribbon<\/span><\/span><\/span><\/li>\n
  3. Alternatively, right-click to expose the context menu >  Choose "<\/span><\/span><\/span>Polyline Column Editor"<\/span><\/span><\/li>\n<\/ol>\n
    The Polyline Column Editor dialog will appear; where you can draw \/ change the column shape and define the rebars manually.  This dialog has several tabs. <\/span><\/span><\/div>\n

    Section Edit tab <\/span>
    <\/h1>\n
    When you load the Polyline Column Editor, you will first see the outline of the rectangular column. The column insertion point (intersection of the axes) is also displayed.<\/span><\/div>\n
    <\/div>\n
    <\/div>\n

    <\/span><\/div>\n
    The (0,0) co-ordinate is fixed at the initial position of  vertex 0. The coordinates of each vertex are described by their horizontal, (dx) and vertical, (dy) offset from this position.<\/span><\/div>\n
    \n

    View Menu<\/span><\/span><\/span><\/span><\/b>
    <\/h2>\n

    <\/span><\/p>\n<\/p>\n

    <\/div>\n
    View menu includes  \u201cZoom Extents\u201d, and \u201cUndo\u201d options.<\/span>
    <\/span><\/div>\n

    \u201c<\/span><\/span>Zoom Extents<\/span><\/span><\/i>\u201d zooms to display the drawing extents.  Moreover, \u201c<\/span><\/span>Zoom in<\/span><\/span><\/i>\u201d, "<\/span><\/span>Zoom Out<\/span><\/span><\/i>" and \u201c<\/span><\/span>Pan<\/span><\/span><\/i>\u201d operations can be performed by using the mouse wheel.<\/span><\/span><\/span>
    <\/span><\/span><\/span><\/p>\n

    Click "<\/span><\/span>Undo<\/span><\/span><\/i>" as many times as you wish, backing up one step at a time, until the drawing is as it was when you began the current editing session. Alternatively, \u201c<\/span><\/span>Undo<\/span><\/span><\/i>\u201d option in the shortcut menu that is displayed by right-clicking can be used.  When the shortcut menu is loaded, \u201c<\/span><\/span>Cancel<\/span><\/span><\/i>\u201d option can be selected in order not to do any operation.<\/span><\/span><\/span><\/span><\/p>\n<\/div>\n

    Steel Edit Menu<\/span><\/span><\/b><\/h2>\n

    <\/p>\n

    <\/div>\n
    You can rotate or flip an existing column outline using the options provided in the \u201c<\/span><\/span>Edit<\/span><\/span><\/i>\u201d menu under "<\/span><\/span>Section Edit<\/span><\/span><\/i>" tab. <\/span><\/span><\/span>
    <\/span><\/span><\/div>\n

    \u201c<\/span><\/span>Edit<\/span><\/span><\/i>\u201d menu includes "<\/span><\/span>Section Designer<\/span><\/span><\/i>", "<\/span><\/span>Offset Hole<\/span><\/span><\/i>", "<\/span><\/span>Rectangular Hole<\/span><\/span><\/i>", "<\/span><\/span>Circular Hole<\/span><\/span><\/i>",  \u201c<\/span><\/span>Rotate<\/span><\/span><\/i>\u201d, \u201c<\/span><\/span>Flip Vertically<\/span><\/span><\/i>\u201d, or \u201c<\/span><\/span>Flip Horizontally<\/span><\/span><\/i>\u201d options.<\/span><\/span><\/span>
    <\/span><\/span><\/p>\n

    Section Designer 
    <\/span><\/h3>\n
    Instead of creating a new column by using one of the editing options, you can choose one of the standard column sections provided by the <\/span><\/span><\/span>Section Designer<\/span><\/a> : <\/span><\/div>\n
      \n
    1. Common sections can be easily created by using the parametric options provided in this editor. <\/span><\/span><\/span>
      <\/span><\/li>\n
    2. When you select one of these column section buttons, related dimension parameters.<\/span><\/span><\/span>
      <\/span><\/li>\n
    3. Enter the parameters and choose \u201c<\/span><\/span>OK<\/span><\/b><\/span><\/i>\u201d button to create the shape in the drawing area. <\/span><\/span><\/span>
      <\/span><\/li>\n
    4. The new column will overwrite any existing column information.<\/span><\/span><\/span>
      <\/span><\/span><\/li>\n<\/ol>\n

      Rotate,  Flip Vertically & Horizontally <\/span><\/h3>\n
      In order to rotate the column around its origin (insertion) point : <\/span><\/span><\/span>
      <\/span><\/div>\n
        \n
      1. Click the \u201c<\/span><\/span>Rotate<\/span><\/span><\/i>\u201d option <\/span><\/span><\/span>
        <\/span><\/li>\n
      2. Enter the rotation angle in the \u201c<\/span><\/span>Angle<\/span><\/span><\/i>\u201d field in the dialog.<\/span><\/span><\/span>
        <\/span><\/li>\n
      3. Click OK > <\/span><\/span><\/span>The column will be rotated by the angle indicated, counter-clockwise.  <\/span><\/span><\/li>\n<\/ol>\n

        You can flip section vertically or horizontally by using "<\/span><\/span>Flip Vertically<\/span><\/span><\/i>" or "<\/span><\/span>Flip Horizontally<\/span><\/span><\/i>" options respectively. The column section will be flipped 180 degrees based on chosen option.<\/span><\/span><\/span><\/p>\n

        Grid Menu<\/span><\/span><\/span><\/span><\/b><\/h3>\n

        \u201c<\/span><\/span>Snap To Grid<\/span><\/span><\/i>\u201d option on the toolbar is enabled then the added vertex will be located on the nearest grid point.<\/span><\/span><\/span>
        <\/span><\/span><\/p>\n

        <\/span><\/p>\n

        Grid Spacing to be used in the drawing area can be controlled by the "<\/span><\/span>Grid Settings<\/span><\/span><\/i>" field. <\/span><\/span><\/span><\/p>\n

        Adding a New Vertex<\/span><\/span><\/span><\/span><\/b>
        <\/h2>\n

        A new vertex can be added by left-clicking anywhere along the column edge. The vertex will have the coordinates of the mouse pointer, but if  the \u201c<\/span><\/span>Snap To Grid<\/span><\/span><\/i>\u201d option on the toolbar is enabled then the vertex will be located on the nearest grid point.<\/span><\/span><\/span><\/p>\n

        Editing Vertex Information<\/span><\/span><\/span><\/span><\/b><\/h2>\n

        To move the any vertex, simply left-click & drag to any grid intersection. <\/span><\/p>\n

        Alternatively. vertex coordinates of a polyline column or a hole inside the column can be edited by right-clicking on one of the vertices and selecting the \u201c<\/span><\/span>Edit Vertex Information<\/span><\/span><\/i>\u201d option.<\/span><\/span><\/span><\/div>\n
        <\/div>\n
        <\/div>\n
        <\/div>\n
        When the \u201c<\/span><\/span>Edit Vertex Information<\/span><\/span><\/i>\u201d option is selected a \u201c<\/span><\/span>Vertex Info<\/span><\/span><\/i>\u201d window is opened. The \u201cx\u201d and \u201cy\u201d cartesian vertex coordinates together with corresponding polar coordinates are displayed. <\/span><\/span><\/div>\n
        In addition to these, relative distance and relative angle to the predecessor and successor vertices are displayed in \u201c<\/span><\/span>d (Prior)<\/span><\/span><\/i>\u201d, \u201c<\/span><\/span>d (After)<\/span><\/span><\/i>\u201d, \u201c<\/span><\/span>angle (Prior)<\/span><\/span><\/i>\u201d and \u201c<\/span><\/span>angle (After)<\/span><\/span><\/i>\u201d fields.<\/span><\/span><\/div>\n
        Any modifications done in one of these fields will automatically update the corresponding values in the other fields. Changes will take effect when \u201c<\/span><\/span>Apply<\/span><\/span><\/i>\u201d button is clicked.<\/span><\/span><\/span><\/div>\n
        For simplicity, you only need to change the "x" and "y" coordinates, which is measure from the "Origin". 
        <\/span><\/div>\n
        A vertex can be deleted by using \u201cDelete Vertex\u201d option in the vertex shortcut menu. <\/span><\/div>\n
        <\/div>\n
        Chamfering a V<\/span><\/span><\/span><\/span>ertex<\/span><\/span><\/span><\/span><\/b><\/div>\n

        Vertices of polyline section and holes can be chamfered either by using straight lines or segmented arcs. <\/span><\/span><\/span>
        <\/span><\/p>\n

        In order to create a straight chamfer one of the vertices : <\/span><\/span><\/span>
        <\/span><\/div>\n
          \n
        1. Right click on any of the vertices and select \u201c Break <\/span><\/span>Chamfer<\/span><\/span><\/i>\u201d option.<\/span><\/span><\/span>
          <\/span><\/li>\n
        2. Enter the chamfer length in \u201c<\/span><\/span><\/span>Chamfer <\/span><\/span><\/i>length<\/span><\/i>\u201d field in \u201c<\/span><\/span><\/span><\/span>Break Chamber<\/span><\/span><\/i>\u201d window.<\/span><\/span><\/span><\/span>
          <\/span><\/li>\n
        3. Maximum chamfer distance will be the minimum of two neighboring edge lengths. <\/span><\/span><\/span><\/span>
          <\/span><\/li>\n<\/ol>\n
          To create a round fillet chamber on of the vertices ; 
          <\/span><\/div>\n
          \n
            \n
          1. Right click on any of the vertices and select \u201c Break <\/span><\/span>Chamfer<\/span><\/span><\/i>\u201d option.<\/span><\/span><\/span>
            <\/span><\/li>\n
          2. Select \u201c<\/span>Fillet<\/span><\/span><\/i>\u201d option to fillet the corner.<\/span><\/span><\/span>
            <\/span><\/li>\n
          3. Enter the arc radius in the \u201c<\/span><\/span><\/span>Arc Diameter<\/span><\/span><\/i>\u201d field. <\/span><\/span><\/span>
            <\/span><\/li>\n
          4. Precision of the arc can be adjusted by increasing the segment number in \u201c<\/span><\/span><\/span>Segment Count<\/span><\/span><\/i>\u201d field.<\/span><\/span><\/span><\/li>\n<\/ol>\n<\/div>\n

            Removing a Fillet<\/span><\/span><\/span><\/span><\/b><\/h2>\n
            Right-clicked on a vertex, \u201c<\/span><\/span>Unfillet<\/span><\/span><\/i>\u201d option will be displayed if there is a predefined fillet. <\/span><\/span><\/div>\n
            Fillet will be deleted and section will be restored if this option is selected.<\/span><\/span><\/div>\n

            Inserting a Hole Inside The Column<\/span><\/span><\/span><\/span><\/b>
            <\/h2>\n

            A hole can be inserted in a column by : <\/span><\/p>\n

              \n
            1. Right-click on the drawing canvas > choose \u201c<\/span><\/span>Insert Rectangular Hole<\/span><\/span><\/i>\u201d or \u201c<\/span><\/span>Insert Circular Hole<\/span><\/span><\/i>\u201d options.  <\/span><\/span><\/span><\/li>\n
            2. Alternatively, click "<\/span><\/span>Rectangular Hole<\/span><\/span><\/i>" or "<\/span><\/span>Circular Hole<\/span><\/span><\/i>" in toolbar under "<\/span><\/span>Edit<\/span><\/span><\/i>" tab. <\/span><\/span><\/span>
              <\/span><\/li>\n
            3. Left click & drag <\/span><\/span><\/span>inside the polyline section to draw the hole manually.<\/span><\/span><\/span><\/span>
              <\/span><\/span><\/li>\n<\/ol>\n

              An offset hole can be inserted by clicking the \u201c<\/span><\/span>Offset Hole<\/span><\/span><\/i>\u201d icon located on toolbar.  The offset distance will be asked for and the whole section will be offset inwards by the specified amount in order to form the hole.<\/span><\/span><\/span><\/p>\n

              Editing or Moving a Hole<\/span><\/span><\/span><\/span><\/b><\/h2>\n

              Vertices of a hole can be edited by right-clicking on the vertex and selecting the \u201c<\/span><\/span>Edit Vertex Information<\/span><\/span><\/i>\u201d option. Furthermore, a hole can be moved by right-clicking on one of the vertices of the hole and selecting \u201c<\/span><\/span>Move Hole By Mouse<\/span><\/span><\/i>\u201d or \u201c<\/span><\/span>Move Hole By Entry<\/span><\/span><\/i>\u201d.<\/span><\/span><\/span>
              <\/span><\/span><\/p>\n

              A hole can be deleted by selecting the \u201c<\/span><\/span>Delete Hole<\/span><\/span><\/i>\u201d option.<\/span><\/span><\/span><\/p>\n<\/p>\n

              Steel Layout Tab<\/span>
              <\/h1>\n
              The Steel Layout Tab is where rebars can be created. <\/span><\/div>\n
              <\/div>\n
              <\/div>\n
              \n
              \"Notes\"<\/p>\n
              For polyline column, rebars and links must be manually inserted for design to work.  In the column design, the polyline column rebar number & position will not be changed, only the size of the rebars will be auto-designed. <\/span><\/div>\n

              <\/span><\/div>\n<\/div>\n

              The important icons are explained below. <\/div>\n

              Automatic Containment<\/span><\/span><\/b><\/span><\/span><\/h2>\n
              This should be the first icon to activate which will launch Automatic Column Containment.<\/div>\n
              <\/div>\n

              Head Zones<\/span><\/b> 
              <\/span><\/h3>\n
                \n
              1. Only applicable for RC wall where Head Zones can be inserted.<\/span><\/li>\n
              2. These inputs are deactivated for column.
                <\/span><\/li>\n<\/ol>\n

                General Parameter<\/span><\/b> 
                <\/span><\/h3>\n
                  \n
                1. Corner Bar Diameter :  Select rebar diameter at the corner edge
                  <\/span><\/li>\n
                2. Intermediate Bar Diameter : Select rebar diameter between the corner edge
                  <\/span><\/li>\n
                3. Number of Corner Bars : Select number for bundle bars at corner edge
                  <\/span><\/li>\n
                4. Web Bar Ratio :  Specify minimum area of steel, i.e area of steel divided by cross section area<\/span><\/li>\n<\/ol>\n
                  Clicking OK will automatically insert links and rebars for the column. 
                  <\/span><\/div>\n
                  \n
                  \"Info\"<\/p>\n
                  If rebars are inserted wrongly, simply place the mouse cursor over the rebar or link and press <\/span>DELETE<\/span><\/b> key.  <\/span><\/div>\n
                  Automatic Containment may not work for non-standard shape.  In this case,  insert links and rebars manually as described below<\/span><\/div>\n

                  <\/span><\/div>\n

                  <\/div>\n
                  <\/div>\n<\/div>\n

                  Delete Steel Bars <\/span><\/b>
                  <\/span><\/h2>\n
                  This will delete all the steel bars inserted.<\/span><\/span><\/div>\n

                  Delete Steel Bars and Links <\/span><\/b>
                  <\/span><\/h2>\n
                   <\/span>This will delete all steel bars and links. <\/span><\/span><\/div>\n

                  Inserting Links<\/span><\/h2>\n
                  When starting from a fresh shape with no links and rebars, the first step is to insert the outer link with the following step : 
                  <\/span><\/div>\n
                  1.  Place the mouse cursor near, but not too close to the grey line (avoid corner as cursor may snap to corner)  > <\/span>Right-Click<\/span><\/b><\/div>\n
                  \n
                  <\/div>\n
                  <\/div>\n<\/div>\n
                  2.  Pick "<\/span>Select Link Type<\/span><\/b>" >  Select the Link type :  <\/span>Closed Link <\/span><\/b>\/<\/span> U Link<\/span><\/b> \/ <\/span>Straight Link <\/span><\/b>> <\/span>OK <\/span><\/b><\/div>\n
                  <\/div>\n
                  <\/div>\n
                  \"Notes\"<\/p>\n
                  Auto-Selected Link<\/span><\/b> will attempt to pick the most common link. <\/span><\/span>
                  <\/span><\/div>\n
                  End Zone Link<\/span><\/b> is only applicable for polyline shear walls for high seismic zone design<\/span><\/div>\n

                  <\/span><\/div>\n

                  3.  The outer link will be inserted (example below is a Closed Link) <\/span><\/div>\n
                  <\/span><\/div>\n
                  <\/div>\n

                  Longitudinal Bars<\/span><\/span>
                  <\/h2>\n
                  Automatic Containment<\/span><\/b> function can be used to insert rebar at the corner of each link.  <\/span>However, this may not work depends on the column shape. <\/span><\/div>\n
                  Corner corner bar can be inserted manually by : <\/span><\/div>\n
                  \n
                    \n
                  1. Select the Bar Diameter<\/b> (click dropdown list)
                    <\/span><\/li>\n
                  2. Click Longitudinal Bars<\/b> icon
                    <\/span><\/li>\n
                  3. Place mouse cursor<\/b> at the corner grey grid > A grey square<\/b> will be shown 
                    <\/span><\/li>\n
                  4. Click and drag in internal direction (black circle will be shown)<\/span><\/li>\n
                  5. Rebar will be added<\/span><\/li>\n<\/ol>\n
                    See demo on corner rebar insertion below.<\/span><\/div>\n
                    \n
                    \n
                    Insert corner rebar<\/span><\/span><\/div>\n<\/div>\n
                    Once the links and corner bars are inserted, additional intermediate rebars can be inserted by :<\/span><\/div>\n<\/div>\n<\/div>\n
                      \n
                    1. Place mouse cursor at the corner grey grid > A square will be shown <\/span><\/li>\n
                    2. Click and drag to the next corner (black circle will be shown) <\/span><\/li>\n
                    3. When the mouse cursor is at 2nd corner, a grey square is shown
                      <\/span><\/li>\n
                    4. Release the mouse button > "Steel Bar Insertion" dialog will be shown
                      <\/span><\/li>\n
                    5. Enter number of intermediate Bars & Select rebar diameter > Click OK<\/b><\/span><\/li>\n
                    6. Intermediate bars of equivalent distance will be inserted. 
                      <\/span><\/li>\n<\/ol>\n
                      Refer to corner rebar insertion demo below. <\/span><\/div>\n
                      \n
                      \n
                      Insert Bars<\/span><\/span><\/div>\n<\/div>\n
                      Insert Links<\/b><\/span><\/span><\/span><\/span><\/div>\n<\/div>\n
                      To insert single "C" link between rebars :<\/span><\/div>\n
                        \n
                      1. Place mouse cursor on 1st rebar
                        <\/span><\/li>\n
                      2. Left click and drag to the 2nd bar (mouse cursor will show a link)
                        <\/span><\/li>\n
                      3. Release mouse click >  Link is inserted
                        <\/span><\/li>\n<\/ol>\n
                        To insert closed link enclosing more rebars : <\/span><\/span>
                        <\/span><\/div>\n
                        \n
                          \n
                        1. Right Click on 1st rebar > Pick "Start Link Insertion"
                          <\/span><\/li>\n
                        2. Click on subsequent rebars in anti-clock wise manner
                          <\/span><\/li>\n
                        3. Finally click on the 1st rebar > Right Click <\/span><\/li>\n
                        4. A closed link will be inserted
                          <\/span><\/li>\n<\/ol>\n
                          See demo on links insertion below. <\/span><\/div>\n
                          \n
                          \n
                          Insert Links<\/span><\/span><\/div>\n<\/div>\n

                          Exit Menu<\/span><\/span><\/span><\/span><\/b><\/h2>\n

                          \n

                          This menu includes \u201c<\/span><\/span>OK<\/span><\/span><\/i>\u201d and \u201c<\/span><\/span>Cancel<\/span><\/span><\/i>\u201d options. The changes made will be valid if you close this menu using the "<\/span><\/span>OK<\/span><\/span><\/i>" button. If you press the "<\/span><\/span>Cancel<\/span><\/span><\/i>" button the changes will be discarded.<\/span><\/span><\/span><\/span><\/p>\n

                          <\/span><\/span><\/span><\/p>\n

                          <\/div>\n<\/h1>\n

                          Settings Tab<\/span><\/span><\/span><\/span><\/b>
                          <\/h1>\n<\/div>\n
                          General screen settings can be controlled under this tab.<\/span><\/span><\/div>\n<\/div>\n

                          The "<\/span><\/span>concrete cover<\/span><\/span><\/i>", "<\/span><\/span>corner bar count<\/span><\/span><\/i>", and "<\/span><\/span>corner bar spacing<\/span><\/span><\/i>" can be adjusted in the \u201cRebars\u201d menu.<\/span><\/span><\/span>
                          <\/span><\/span><\/p>\n

                          The colour of the background can be changed under the "<\/span><\/span>Colour<\/span><\/span><\/i>" menu.<\/span><\/span><\/span>
                          <\/span><\/span><\/p>\n

                          You can select the link view style either "<\/span><\/span>Section View<\/span><\/span><\/i>" or "<\/span><\/span>Line View<\/span><\/span><\/i>" in "Link" Menu.<\/span><\/span><\/span><\/p>\n

                          <\/div>\n","protected":false},"excerpt":{"rendered":"

                          To create a irregular shape concrete column, you use Polyline Column Editor.  After defining a rectangular column at an intersection, this column can be converted…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":{"_whitepaper_youtube_videos":"","_whitepaper_youtube_url":"","_whitepaper_youtube_thumbnail":"","footnotes":""},"categories":[185],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-33785","wiki","type-wiki","status-publish","hentry","category-structural-modelling"],"yoast_head":"\nPolyline Column Editor - Prota Software<\/title>\n<meta name=\"description\" content=\"To create a irregular shape concrete column, you use Polyline Column Editor. After defining a rectangular column at an intersection, this column can\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/protasoftware.com\/wiki\/polyline-column-editor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prota Software\" \/>\n<meta property=\"og:description\" content=\"To create a irregular shape concrete column, you use Polyline Column Editor. After defining a rectangular column at an intersection, this column can\" \/>\n<meta property=\"og:url\" content=\"https:\/\/protasoftware.com\/wiki\/polyline-column-editor\/\" \/>\n<meta property=\"og:site_name\" content=\"Prota Software\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-19T12:37:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-b6b4ef3b7c118a9a3fd919c440e6934c.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Prota Software\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/protasoftware.com\\\/wiki\\\/polyline-column-editor\\\/\",\"url\":\"https:\\\/\\\/protasoftware.com\\\/wiki\\\/polyline-column-editor\\\/\",\"name\":\"Polyline Column Editor - 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