| 7 X3D Models |
X3D Model Descriptions |
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default fontstyle
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Test default FontStyle rendering. A FontStyle node with default values for all of its fields is used to render three lines of a Text geometry. Horizontal lines in this world are spaced 1 unit apart. The green lines represent the X and Y axes of the local coordinate system. With a default "family" value of SERIF, the text should be be a SERIF family font. With "horizontal" equal to true, the text should be parallel to the X axis, and advance in the positive X direction. With "justify" = [BEGIN,"FIRST"], the text should be justified at the left edge of the line. With "leftToRight" = true, text should advance in a "left to right" direction along the major (X) axis. With a default font "size" of 1, the nominal font "glyph" height should be 1 unit in the local coordinate system. This corresponds to the distance between successive horizontal lines in this world. With a default font "spacing" of 1, the distance between the base of two succesive Text lines should be 1 unit in the local coordinate system. With a default "style" of PLAIN, the text should not appear bold, or italic, or bold and italic. With a default "topToBottom" value of true, successive lines of text should advance from top to bottom along the minor (Y) axis. |
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driver
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Test all possible combinations of "horizontal", "justify", "leftToRight" and "topToBottom" for major and minor Text axes. The viewer can select any combination of buttons and verify the correct Text orientation and spacing using the example images to the left of the browser window. |
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family
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Test range of family values for FontStyle node. A FontStyle node with default values for all of its fields is used to render three lines of a Text geometry. Horizontal lines in this world are spaced 1 unit apart. The green lines represent the X and Y axes of the local coordinate system. With a default family="SERIF", the text should be be a SERIF family font. With horizontal="true", the text should be parallel to the X axis, and advance in the positive X direction. With justify='"BEGIN" "FIRST" ', the text should be justified at the left edge of the line. With leftToRight="true", text should advance in a left to right direction along the major (X) axis. With a default font size="1", the nominal font glyph height should be 1 unit in the local coordinate system. This corresponds to the distance between successive horizontal lines in this world. With a default font spacing="1", the distance between the base of two succesive Text lines should be 1 unit in the local coordinate system. With a default style="PLAIN", the text should not appear bold, or italic, or bold and italic. With a default topToBottom="true", successive lines of text should advance from top to bottom along the minor (Y) axis. |
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next family
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Test FontStyle node ability to go to next family in attribute list. A "family" type of "NONEXISTENT" is supplied to a FontStyle node, followed by a TYPEWRITER type. Because the browser does not support a "NONEXISTENT" family type, it should proceed to the next supported type (TYPEWRITER) and render a 3 line text string with a TYPEWRITER family font. |
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serif family
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Test SERIF family rendering for FontStyle node. A "family" type of "NONEXISTENT" is supplied to a FontStyle node. No other family type is contained in the MFString list. Because the browser does not support a "NONEXISTENT" family type, and no other family type is in the list, the browser should default to a "SERIF" family font, and render a 3 line text string with a SERIF family font. |
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size spacing
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Test different size and spacing values for FontStyle node. Three different "size" and "spacing" combinations are used here to test browser ability to properly space text both horizontally and vertically. The first test sets size = 2 and spacing = 0.5 (the red text). Distance between the base of the two text lines should be 1 unit. For the horizontal text this is measured between the bottoms of the text lines. For the vertical text, spacing is measured between the left sides of adjacent text lines. In both cases, the nominal vertical height of the fonts should be 2 units. The second test sets size = 1 and spacing = 1 (the yellow text). Distance between the base of the two text lines should be 1 unit. For the horizontal text this is measured between the bottoms of the text lines. For the vertical text, spacing is measured between the left sides of adjacent text lines. In both cases, the nominal vertical height of the fonts should be 1 unit. The first test sets size = 0.75 and spacing = 4 (the blue text). Distance between the base of the two text lines should be 3 units. For the horizontal text this is measured between the bottoms of the text lines. For the vertical text, spacing is measured between the left sides of adjacent text lines. In both cases, the nominal vertical height of the fonts should be 0.75 units. |
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style
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Test style attribute for FontStyle node. All three required family fonts are used to test the four "style" types of "PLAIN" (upper left quadrant), "ITALIC" (upper right quadrant), "BOLD" (lower left quadrant) and "BOLDITALIC" (lower right quadrant). Text should reflect these styles. |
