Distance and band analysis – Help Center 3DViewStation

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Distance and band analysis

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Toolpane Settings

This chapter describes the tool settings of the Band Analysis function.

Setting / Button		Default value (If multiple options are available, the default is bold.)	Description
Band analysis
Accuracy		5.0 mm	Defines the accuracy of the calculation. Reducing the value provides more accurate results, but increases the calculation time.
Compute			Starts a distance band calculation. Settings below can be changed before and after the calculation. A new calculation will overwrite the color map values, if ''Freeze min/max values'' is off.
Visualization
Limit values to min/max			Off: Values above the maximum or below the minimum values of the defined ''Color map'' will be shown in the color defined by ''Outside min/max color''. On: The color of the minimum or maximum value will be assigned to the values outside the color map range.
Outside min/max color			This color will be assigned to values outside the ''Color map'' range, if setting ''Limit values to min/max'' is off.
Freeze min/max values			Off: New calculations will overwrite the ''Color map'' values. On: Color map values will be kept for new calculations.
Color map presets			Presets that contain predefined colors and the ''Number of values'' for the ''Color map''. Shows ''User defined'' when no preset matches the ''Color map'' settings chosen. Presets can be adjusted and added: Installation directory\Resources\presets.xml.
Reverse colors			On: Reverses the color sequence of the ''Color map''.
Relative values			Off: Show ''Color map'' values as absolute distances. On: Show color map values as intervals.
	Color map
	Number of values		Number of values and colors. Changing the number will trigger a recalculation of the intermediary values and colors.
	Reset min/max		Resets all ''Color map'' values to the min/max values of the calculation. Ignores ''Freeze min/max values''.
	Value automation
	Update intermediate values		Interpolates the intermediate values of the color map. Helpful after editing the min/max values of the color map.
	Apply quantiles		Removes outlying values from the color map. The top and bottom 5 % of values are ignored to focus on the values in the middle.
	Apply logarithmic scale		Uses a logarithmic scale on the color map. Sometimes linear intervals obscure very small but important value ranges that are close together. This spreads those small ranges and assigns them a larger color spectrum, making them more expressive.
	Miscellaneous
	Apply selection to others		Color map results with different settings cannot be meaningfully displayed in the legend. This applies the settings of the selected result to all other visible results and updates the color map and legend accordingly.
	Create band geometry		Converts the shown visualization of bands to individual geometries per color band. These geometries can be exported.
Unify properties			If two or more heatmap nodes (of the same type) with different visualization properties are selected, they have to be unified before we can display the visualization settings.
Legend
Show histogram		false	On: Color legend shows a dotted line indicating the frequency distribution of the values.
Number of decimal places		4	Specifies the displayed decimal places of the color map values.
Show equidistant values		false	Off: All legend intervals are spaced according to their numeric value. On: All legend intervals are spaced with equal distances, irrespective of their numeric values. This improves visibility for very small intervals.

Tutorial

In the Analysis functional area, you can use the Band analysis tool to graphically display the distance between geometries (surfaces and solids).

The Band analysis tool window is divided into three sections:

▪Minimal distance,

▪Band analysis and

▪Dimensioning.

Minimum Distance & Dimensioning

Analogous to the Distance: Solid to solid function in the Measurement tab, the smallest distance between two selected geometries (surfaces and solids) can be dimensioned here. This is useful, for example, to define the absolute color bands.

Settings for the annotations (3D markups) of the minimum distance can be found in the Dimensioning section. If you only want to get the measurement value without 3D annotation, you can switch from Dimensioning to Measurement in the Measurement tab.

Band Analysis

The calculation of the band analysis can be absolute or relative (see below).

You can define up to 6 bands for the distance visualization. If you enter 0, this band is not calculated.

The resolution of the considered points for the visualization of the distance calculation is determined automatically, but can be defined manually under Refinement. Smaller values lead to finer transitions of the bands, but also to a longer calculation time. The resolution must not exceed the width of the smallest band.

By the calculation of the bands the original geometries are hidden and colored geometries are created. These are stored in the model structure under CreatedNodes > BandAnalysisSet > BandAnalysis 1 etc. Each band as well as the geometry parts that were not captured represent own geometries and can be selected. Thus further processing, dimensioning and export are possible.

Absolute Band Analysis

Takes into account the minimum distance between the selected geometries and colors the bands according to the specification. To create bands according to the following example, you must specify the absolute distance (minimum distance + width of the previous band).

Relative Band Analysis

The relative calculation, however, does not take into account the minimum distance between the geometries and the width of the previous band. Therefore, you only need to specify the desired width for the respective band.

As a result, the relative calculation can now be used for further analyses with geometries of different distances without any further adjustment.

The following information leads to the same visualization as in the above example for the absolute calculation:

Tip

hint

▪You want to combine several geometries into one object for analysis? You will find this option for a selection of geometries in the Model tab in the Merge objects tool.

▪The bands are initially created without edges. If they are required for measurements or transformation, for example, you can generate them using the Generate wires function in the Tools tab under Geometry Tools.

Examples

3D_BandanalyseBeispiel

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