Graphic drawing system
First Claim
Patent Images
1. A graphics drawing system, comprising:
- a drawing surface;
a stylus capable of being moved over the surface in order to simulate plotted lines;
means for determining the coordinates of the stylus in the plane of the surface with respect to a reference;
processing means connected to the coordinate determination means, in order to create or update a digital image by using the coordinates of the stylus; and
means for displaying the image on a screen, which display means are connected to the processing means; and
wherein the means for determining the coordinates of the stylus comprise means to determine the coordinates of a tip of the stylus and means to determine an angle of the stylus with respect to the drawing surface, wherein the means for displaying includes means for displaying the image that includes a line having a width that is determined as a function of the angle of the stylus with respect to the drawing surface.
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Abstract
A graphic drawing system includes a drawing surface and a stylus capable of being moved over the surface in order to simulate plotted lines. The coordinates of the stylus in the plane of the surface are determined with respect to a reference, and a digital image can be created or updated using these coordinates. This digital image can be displayed on a screen. An angle of the stylus with respect to the drawing surface can determine a line width in the image.
49 Citations
24 Claims
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1. A graphics drawing system, comprising:
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a drawing surface; a stylus capable of being moved over the surface in order to simulate plotted lines; means for determining the coordinates of the stylus in the plane of the surface with respect to a reference; processing means connected to the coordinate determination means, in order to create or update a digital image by using the coordinates of the stylus; and means for displaying the image on a screen, which display means are connected to the processing means; and wherein the means for determining the coordinates of the stylus comprise means to determine the coordinates of a tip of the stylus and means to determine an angle of the stylus with respect to the drawing surface, wherein the means for displaying includes means for displaying the image that includes a line having a width that is determined as a function of the angle of the stylus with respect to the drawing surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 22, 23, 24)
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14. A method for graphically drawing images, comprising the steps of:
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determining a relative location of a stylus with respect to a drawing surface; determining an angle of the stylus with respect to the drawing surface; and displaying an image, in response to the relative location and the orientation vector, wherein a width of line segments of the image is a function of the angle of the stylus with respect to the drawing surface. - View Dependent Claims (15, 16, 17)
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18. A system for graphically drawing images, comprising:
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a stylus; a drawing surface; means for determining a relative location of the stylus with respect to the drawing surface; means for determining an angle of the stylus with respect to the drawing surface; and means for displaying an image, in response to the relative location and the orientation vector, wherein a width of line segments of the image is a function of the angle of the stylus with respect to the drawing surface. - View Dependent Claims (19, 20, 21)
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Specification