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Tape Dimension
To record points based on tape measured lengths of lines perpendicular to each other starting from a reference line made of two known points.
The Tape Dimension is useful for calculation of the periphery of structures, such as buildings, that have features perpendicular to each other. This is done using tape measurements, relative to two known points that belong to one side of the structure (wall of the building), forming the reference line.
The dialog offers tools to specify start and end points of the reference line, input tape measured perpendicular segments (length and direction) one after another, calculate and record segment points coordinates and calculate the delta difference between horizontal coordinates of end point of the last measured segment and start point of the reference line. Four tabs are available in the dialog:
- Ref Line tab - to specify the reference line to start measurements from.
- Tape Dim tab - to enter tape measurements of perpendicular segments.
- Results tab - to review details on entered tape measurements and calculated results.
- Map tab - to view entered tape measurements graphically on the map.
Click
to open the dialog menu with additional options:
- Raw Data - click the item to expand the sub-menu:
- Add Raw Note - opens the dialog where you can enter any text comment during the survey that is saved as a raw data note
.
- Edit - opens the Raw data dialog with raw data collected in the job.
In the Ref Line tab, specify the reference line to start tape measurements from:
In the Tape Dim tab, enter the performed tape measurements one after another and monitor overall progress:
- The preview panel displays the reference line and measured perpendicular segments. Initially, only the reference line is visible. The end point of the reference line is the start point of the first perpendicular segment that is measured by tape.
- In the Point field, enter a name for the calculated end point of currently measured segment. This point will be also the start point of the next perpendicular segment.
- Set Code and attributes for the point:
- Select an existing Code from the drop-down list. You can manually type a code name. If there is no code with such name, the Code dialog will open when saving. There you can quickly create a new code with entered name.
- If the code type is Line or Area, the respective icon indicates that the point belongs to a line or area. Set a Code String and, if required, select an available Control Code (single or dual) from the drop-down list.
- Click the Code
button to access more code and attribute parameters in the Point Attributes dialog.
- Enter obtained tape measurement data for the current segment:
- Enter the length of the measured segment in current distance measurement units.
- Click the toggle button to select the current perpendicular direction relative to the previous segment direction, either
Dist Left or
Dist Right.
- Click the Accept button to save the end point of the measured segment to the job, this point is marked with
icon in listings. The point's horizontal coordinates are calculated based on the tape measurement, the vertical coordinate is equal to the vertical coordinate of end point of the reference line. The measurement result is also stored in the Raw Data database as the Tape type of measurement and marked with either
, or
icon in the list.
- Repeat the routine for every perpendicular segment sequentially measured by tape.
- Finish the tape measurements, either by choosing Close polygon (the line will connect the calculated end point of last measured segment and the start point of the reference line), or Calc Closure if assumed that the end point of the last measured segment is the start point of the reference line (the delta difference between horizontal coordinates of these points is calculated).
In the Results tab, review detailed data on entered tape measurements, check and save calculated results:
- Review the Tape Dimension calculation results:
- Start Point - the name of the start point of the reference line.
- End Point - the name of the end point of the reference line.
- Point - the name of the end point of the last measured segment.
- Coordinates - the calculated coordinates of the end point of the last measured segment.
- dNorth and dEast - the calculated delta difference between horizontal coordinates of end point of the last measured segment and start point of the reference line.
- Taped distance - perpendicular direction and tape measured distance for all perpendicular segments in their respective order.
- For the optical survey configuration, the occupation setup is also included in the results.
- Click
to export the results to a *.txt file.
In the Map tab, entered tape measurements are shown graphically on the map along with other job objects. The reference line and measured perpendicular segments are red lines, their points are blue circles.
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