Drawing Polyline

Function Description

The polyline command is used to create polylines. In practical applications, line objects are mainly used to describe polylines, such as rivers, railways, roads, power lines, etc. The application also provides various ways to draw polylines to meet the drawing requirements in different application scenarios.

Functional Entry

  • Features tab -> Objects group -> Line drop-down list -> Polyline.

Operation Instructions

Drawing Polyline by Inputting Coordinate Values

  1. In the Features tab, Objects group, click the Line drop-down button and select the Polyline option.
  2. Move the mouse to the map. You can see that as the mouse moves, the coordinate values of that point are displayed in real-time in the subsequent parameter input box. In this box, enter the coordinate values of a node of the polyline (you can switch between the two input boxes by pressing the Tab key) and then press Enter to determine the starting position of the polyline.
  3. Move the mouse and enter the coordinate values of the next node in the subsequent parameter box, then press Enter to complete the drawing of the first segment of the polyline.
  4. Continue moving the cursor to a suitable position, enter the X and Y coordinate values, then press Enter to draw the next segment of the polyline.
    Notes:

    When the user edits the value in the parameter input box, the input box will be locked, meaning the value in the parameter input box does not change with the mouse movement and only displays the user-input value; pressing the Tab key can switch focus between the X and Y coordinate input boxes, i.e., the editing state. Pressing the Esc key can cancel the locked state of the current parameter input box.

       
    Enter the coordinates of the first point   Enter the coordinates of the second point   Enter the coordinates of the third point
  5. Repeat the previous step to complete the drawing of other segments of the polyline.
  6. Right-click to end the current drawing operation.

Drawing Polyline by Inputting Length and Angle

  1. In the Features tab, Objects group, click the Line drop-down button and select the Polyline(Length,Angle) command. The polyline cursor appears.
  2. Move the mouse to the map. You can see that as the mouse moves, the coordinate values of the current mouse position are displayed in real-time in the subsequent parameter input box. In this text box, enter the coordinate values of a node of the polyline (you can switch between the two parameter input boxes by pressing the Tab key) and then press Enter to determine the starting position of the polyline.
  3. Move the mouse. You can see that as the mouse moves, the length of the line connecting the mouse position and the previous node (polyline starting point) and its angle with the positive X-axis are marked in real-time on the map. In the parameter input box, enter the length and angle values (you can switch between the two parameter input boxes by pressing the Tab key), then press Enter to execute the input and complete the drawing of the first segment of the polyline.
  4. Similarly, input the distance value between the next node and its previous node and the angle of the connecting line with the positive X-axis, then press Enter to draw the next segment of the polyline.
  5. Use the same method to draw other segments of the polyline.
  6. Right-click to end the polyline drawing operation.