User Hatching

TopSolid allows to create a user hatching pattern to represent material in all directions thanks to sketches of a 2D Model document.

This hatching could be used in a material definition or editing an hatching in a draft document.

Creation stages / Use:

Create a new document of type 2D Model (Special tab).
Create sketches in it representing material in different directions.
Provide the Hatching function from Tools > Provide Function... command.
Complete publishing.
Validate.

The hatching has to be define in 3 directions (radial, longitudinal and tangential).

With possibility define 3 additional hatches in the optional publishings tab.

In a drafting cross section, hatching sketches are used according to the fibers frame of the part:

Cross section parallel to the YZ plane of fibers frame: radial sketch.
Cross section parallel to the XZ plane of fibers frame: longitudinal sketch.
Cross section parallel to the XY plane of fibers frame: tangential sketch.

Available options:

Scaling type:

This field defines the direction to use in the sketch to build this sketch again in the cross section view.

Horizontal: TopSolid applies a scale factor to the sketch so that the horizontal length of its enclosing rectangle contains totally in the part in this same direction. The sketch will be repeated on the vertical axis if its dimension in this direction is smaller than the part.

Vertical: TopSolid applies a scale factor to the sketch so that the vertical length of its enclosing rectangle contains totally in the part in this same direction. The sketch will be repeated on the horizontal axis if its dimension in this direction is smaller than the part

Largest Dimension: TopSolid searches for the direction having the largest dimension on the part and it will use this one in the sketch to calculate the scale factor (transforming the sketch as above). Mainly use to represent rings of wood part in a cross section view.

Vertical scaling type with 0mm as dimension.

Vertical of enclosing rectangle is contained in the vertical of the part (Y axis of fibers frame) et repeated on X (the separation of repeated element is represented with a green line).

Sketch definition to be used in Largest dimension mode with a dimension of 0mm.

Result in a cross section view in drafting on a part with circular section.

Dimension:

When dimension is equal to 0mm, TopSolid will use the enclosing rectangle of the sketch and build this sketch on the part as explained above.

When dimension is different of 0mm, TopSolid will use a rectangle of giving dimension in the specified direction and build this sketch on the part as explained above. If the scaling type is set to Largest dimension then TopSolid searches for the directing having the largest dimension on the part and it will use this direction with the giving dimension into the sketch to build it again on the cross section view.

Vertical scaling type with 57mm as dimension (symbolized with blue construction lines, these lines are not necessary to define the hatch).

Rectangle of dimension 57mm in vertical direction is transposed on the vertical axis of the part (Y axis of fibers frame) and repeated on X (the separation of repeated element is represented with a green line).

Largest dimension scaling type with 20mm as dimension.

On the cross section the largest dimension on the horizontal axis of fibers frame. Therefore TopSolid takes 20mm on the sketch horizontal axis and transpose this area on the cross section. The sketch origin is applied to the fibers frame origin.

Modifications / Additional information:

Sketch positioning on the part in the cross section view:

According to the scaling type definition, the sketch is positioned in two ways:

Horizontal or vertical scaling type: sketch origin is positioned on X-Y- in the cross section view (according to the fibers frame).
Largest dimension scaling type: sketch origin is positioned on the origin of the fibers frame.

According to these explanations, and in order to have a consistent display in the view, you must build your sketch in X+Y+ (according to the sketch frame) for horizontal and vertical scaling type. And build the skecth on the center of the sketch frame if this one is dedicated to be used with largest dimension scaling type.

This sketch has been defined with Horizontal scaling type.

Sketch origin is positioned in X-Y- according to fibers frame.

This sketch has been defined with Largest dimension scaling type.

Sketch origin is positioned on the fibers frame origin.

For special needs, we may not wish that the hatching pattern fill all the part in the cross section view. In this case, in the sketch definition, you must draw in construction lines a rectangle largest that the sketch. It is this rectangle that will be used to build again the sketch in the view.

Sketch with vertical scaling type without new construction lines.

Result in cross section view. TopSolid uses the enclosing rectangle to build the hatching pattern in the view.

Sketch with addition of construction lines.

The enclosing rectangle takes into consideration these new lines.