<< Click to Display Table of Contents >> Navigation: MechDesigner Reference & User Interface > Dialog-Boxes > Dialog: Function-Block: Point-Cloud |
See Add Point-Cloud
Do two(2) steps in the Point Cloud dialog-box:
STEP 1: Import-data ( the Point-Cloud, TXT file-type)
Usually, the Point-Cloud are coordinates of a cam-profile, which are measured with a Coordinate Measurement Machine (CMM).
It is possible to use numerical techniques to calculate the motion-derivatives from the Point-Cloud.
STEP 2: Fit-a-Curve to the data
Use Point-Cloud dialog-box to fit a Curve to the Point-Cloud.
The Curve is a continuous-function that we can symbolically differentiate to calculate the motion-derivatives.
Open the Point-Cloud dialog-box
The Point-Cloud dialog-box is now open. |
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There are two tabs: STEP 1: Import DataSTEP 2: Fit Curve to Data |
Do A, B, and C. |
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![]() Import and Browse buttons ![]() Example File Format |
A. Browse... Click the Browse... button to select the data-file. The data-file must by an ASCII, or TXT file-type. The file-name will show in the Data-File (Read-Only) box. A preview of the data-file is in the box below. B. Edit File-Format Headers in the file will not be imported. The data should be rows of data-points - see Data-Points below You can remove extra data from columns/rows with the Edit File-Format box. See File Formats below. c. Import button Click the Import button to import the Point-Cloud data-file. The Point-Cloud is a continuous line in the graphic-area. See also: Messages |
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Data-Points
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![]() Optional: Data Offset and Scale option |
Options:x , y When you add a Point-Cloud, you select a Part. The Part has an Origin - its start-Point - where its XY coordinates are (0,0) When the Point-Cloud has a measurement-offset of (X, Y), you can remove the offset. Enter (-X, -Y), which is the negative of the offset. Or, to offset the Point-Cloud, by (X,Y), enter (X,Y) values. File Rotary Units ; File Linear Units Select the units that match those of the original Point-Cloud data-file |
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File Formats:Pre-Select a File Format To help you with the formatting, you can use the Pre-Select a File Format from the drop-down list-box. When any of these formats do not represent the format of the data in your data-file, then edit the format in the Edit File Format box directly. Example: Data-Files & File-Formats and the Enter File Format text.
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When you import a Point-Cloud, the chart
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Parameters
Steps to do:
Velocity and Acceleration Graphs and Filter Width
Original Data Accuracy
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