Editing the [Pointset Data]

[Pointset Data] consist of coordinates and attribute at that point. Figure 169 shows an example of the [Pointset Data].

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Figure 169 The [Pointset Data]

[Select Points With Polygon] (P)

Description: Defines a polygon region, and select points within that polygon.

Click on canvas region to specify polygon vertices positions sequentially. By double-clicking or pressing Enter key, the polygon is defined and the points within that polygon are selected. Figure 170 shows an example of the [Pre-processing Window] while defining a polygon region. Figure 171 shows an example of the [Pre-processing Window] after selecting.

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Figure 170 The [Pre-processing Window] while defining a polygon region

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Figure 171 The [Pre-processing Window] after selecting points within the polygon region

In normal status, points can be selected with left-dragging.

[Edit Selected Points] (E)

Description: Edits the selected points.

When you select [Edit Selected Points], the [Edit Points] dialog (Figure 172) will open. Input new Value at the selected points, and click on [OK].

../../_images/pre_edit_points_dialog.png

Figure 172 The [Edit Points] dialog

[Export Selected Points] (X)

Description: Exports the selected points to an external file.

When you select [Export Selected Points], the [Select file to export] dialog (Figure 173) will open. Input the file name to export and click on [Save].

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Figure 173 The [Select file to export] dialog

[Add New Point] (A)

Description: Adds new points.

When you select [Add New Point], select a point that already exists first. The value at that point will be the default value at the points you are going to add. Then, click on the canvas where you want to add new points. Finish by double-clicking or by pressing Enter key. The [Add Points] dialog (Figure 174) will open, so input the Value at new points and click on [OK].

Figure 175 shows an example of [Pre-processing Window] while adding new point.

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Figure 174 The [Add Points] dialog

../../_images/example_adding_new_points.png

Figure 175 Example of adding new points

[Interpolate Points] (I)

Description: Adds new points between points that already exists.

After you select [Interpolate Points], click on multiple points that already exists, between which you want to interpolate points. Finish by double-clicking or pressing Enter key. The [Dialog] (Figure 176) will open, so edit the setting and click on [OK] to interpolate points.

Figure 177 shows an operation of interpolating points.

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Figure 176 The [Dialog]

../../_images/example_pointset_interpolate_points.png

Figure 177 Example of interpolating points

[Delete Selected Points] (O)

Description: Deletes the selected points. Figure 178 shows an example.

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Figure 178 Example of deleting selected points.

[Delete Selected Points Less Than Value] (L)

Description: Deletes the points that are selected, and have value less than that you specify.

When you select [Delete Selected Points Less Than Value], the [Delete Points] dialog (Figure 179) will open. Input the value and click on [OK]. Figure 180 shows an example.

../../_images/pointset_delete_points_dialog_less_than.png

Figure 179 The [Delete Points] dialog

../../_images/pointset_example_delete_points_less_than.png

Figure 180 Example of deleting selected points less than the specified value.

[Delete Selected Points Greater Than Value] (G)

Description: Deletes the points that are selected, and have value greater than that you specify.

When you select [Delete Selected Points Greater Than Value], the [Delete Points] dialog (Figure 181) will open. Input the value and click on [OK]. Figure 182 shows an example.

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Figure 181 The [Delete points] dialog

../../_images/pointset_example_delete_points_greater_than.png

Figure 182 Example of deleting selected points greater than the specified value.

[Add Break Line] (B)

Description: Adds break line.

After you select [Add Break Line], click on the points sequently between which you want to add break line. Finish by double-clicking of pressing Enter key.

When you [Remesh TINs], break lines will be used as TIN boundary lines. Figure 183 shows an example.

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Figure 183 Example of TIN boundarys after adding break line

[Remove Break Line] (R)

Description: Removes break line.

After you select [Remove Break Line], click on the break line you want to remove. The [Warning] dialog (Figure 184) will open, so click on [Yes] to remove the break line.

../../_images/pointset_remove_breakline_warning_dialog.png

Figure 184 The [Warning] dialog

[Remove All Break Lines] (O)

Description: Removes all break lines.

When you select [Remove All Break Lines], the [Warning] dialog (Figure 185) will open. Click on [Yes].

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Figure 185 The [Warning] dialog

[Remesh TINs] (T)

Description: Remesh TINs that are used for interpolation.

Remeshing TINs will be necessary when points are added or removed, and/or break lines are added or removed. Figure 186 shows an example of remeshing TINs.

../../_images/pointset_example_remesh_tin.png

Figure 186 Example of remeshing TINs

[Remove triangles with long edge] (W)

Description: Remove triangles with long edge from TIN.

When TIN is generated generated, triangles with long edge are sometimes generated in area in which there is not points. Using this function, you can remove such needless triangles.

When you select [Remove triangles with long edge], dialog (Figure 187) will open. Specify the Limit edge length, and click on [Apply].

You’ll see that the triangles with edges longer than limit edge length are shown as gray area. If you need to, you can change limit edge length, and click on [Apply] again. If it seems OK, click on [OK] button to finish the operation.

Figure 188 shows an example of [Pointset Data] before removing triangles, Figure 189 shows an example of [Pointset Data] after clicking [Apply] button, and Figure 189 shows an example of [Pointset Data] after removing triangles, for each.

../../_images/pointset_remove_tri_dialog.png

Figure 187 [Remove triangles with long edge] dialog

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Figure 188 [Pointset Data] before removing triangles

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Figure 189 [Pointset Data] display example after clicking [Apply] button

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Figure 190 [Pointset Data] after removing triangles

[Display Setting] (S)

Description: Changes display setting of [Pointset Data].

[Pointset Data] can be visualized in the three methods: [Points], [Wireframe], and [Surface]. Figure 191 shows the three methods.

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Figure 191 [Pointset Data] display methods

When you select [Display Setting], the [Display Setting] dialog (Figure 192) will open. Change settings and click on [OK]. [Transparent] is active only when you select [Surface] for [Display Method].

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Figure 192 The [Display Setting] dialog