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<h1><a name="cmdGrid"></a>2.12.1 Grid Dialog</h1>
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The <strong>Grid</strong> dialog, displayed by <strong>Change Grid</strong> on the View (<a href="viewM.html#viewM">Section 2.12</a>) menu, specifies the origin, angle and other parameters of the Snap Grid. The Snap Grid controls the position of the cursor during the <strong>Curve</strong> (<a href="cmdCurve.html#cmdCurve">Section 2.1.2</a>), <strong>Circle</strong> (<a href="cmdCircle.html#cmdCircle">Section 2.1.1</a>), <strong>Modify</strong> (<a href="cmdModify.html#cmdModify">Section 2.2.7</a>), <strong>Straight</strong> (<a href="cmdStraight.html#cmdStraight">Section 2.1.6</a>), <strong>Line Drawing</strong> (<a href="cmdDraw.html#cmdDraw">Section 2.3</a>) and <strong>Turntable</strong> (<a href="cmdTurntable.html#cmdTurntable">Section 2.1.9</a>) commands.
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<img src="png.d/grid.png">
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The <strong>Grid</strong> dialog contains controls affecting the horizontal and vertical snap grid lines. Each dimension can be independently controlled.
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The <strong>Spacing</strong> value specifies the distance between major grid lines, which are drawn as solid lines on the layout.
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The <strong>Divisions</strong> value adds the minor Grid lines between the major Grid lines, which are drawn as a series of dots on the layout. Specifying a value of 0 or 1 as the division value removes the minor grid lines.
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The Grid can be enabled or disabled in each dimension via the <strong>Enable</strong> check box.
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The origin and angle of the Grid can be adjusted directly or by dragging on the layout. <em>Left+Drag</em> moves the origin of the Grid, and <em>Right+Drag</em> rotates the grid. <em>Shift+Right-Click</em> (<a href="cmdAcclKeys.html#cmdAcclKeys">Section 3.4</a>) displays a pop-up menu allowing rotation of the grid by various predefined angles.
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Whether the Snap Grid is drawn is controlled by the <strong>Show</strong> check-box. Also, if the layout is Zoomed Out (<a href="viewM.html#viewM">Section 2.12</a>) the minor and major grid lines may be too close together to be drawn. The minimum pixel distance between grid lines is controlled by the <strong>Min Grid Spacing</strong> value on the <strong>Display</strong> (<a href="cmdDisplay.html#cmdDisplay">Section 2.10.3</a>) dialog.
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<strong>Note:</strong> on slow machines drawing the Grid can take noticeable time. Performance can be improved by selecting a larger value for <strong>Min Grid Spacing</strong>.
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<img src="png.d/bgsnap.png"> <strong>Grid Buttons</strong> on the Tool-bar (<a href="mainW.html#mainW">Section 3.1</a>) can be used to Enable/Disable and to Show/Hide the Snap Grid.
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