In this task you learn to blend two surfaces, that is create one surface connecting both initial surfaces, while specifying the continuity type.
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Click the 4 Points Patch icon:
to create another surface.
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Subsequently click the four corner points of the first surface.
The second surface is created.
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Select the new surface, right-click to display the contextual menu, and choose the Properties menu item to display the Properties dialog box.
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From the Graphic tab, change this surface color using the arrow in the Color chooser.
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Click OK in this dialog box.
The newly created surface is clearly identifiable.
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Move to the compass. When the pointer changes to a cross, press and hold while dragging the compass onto the new surface.
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Move the pointer over the horizontal axis till it becomes red, and glide the surface away from the first one.
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Repeat this operation with gliding the surface down along the vertical axis, then grab the compass center and bring the compass over the 3-axis system at the bottom right-corner of the document.
The compass is set back to its default position.
