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As a fast and efficient domestic CAD software, Haochen CAD not only provides a safe, stable, and rapid design environment but also offers designers a wider range of design tools. Compared to the low efficiency and accuracy of traditional manual drawing, HaoChen CAD software offers CAD positioning capabilities, enabling more precise and efficient CAD drafting and freeing up more time for innovation. Today, the editor will introduce to you a set of CAD positioning functions commonly used in the CAD drawing process, such as polar tracking, angle locking, object snapping, and more. 1. In HaoChen CAD software, the cursor is set before performing CAD drawing. When using CAD’s positioning assistance functions for precise drawing, the cursor is primarily used for picking and capturing elements. Therefore, in order to be able to quickly identify the positioning status and carry out the corresponding CAD drafting operations in a timely manner, it is necessary to set the cursor first. In the blank area, right-click and select \"Options\", or directly type the shortcut \"OP\" in the command line to open the settings panel. In \"Display\", set the size of the crosshair; the size can be determined according to* preference. In \"Drawing\", set the \"Auto-capture marker size\" and \"Target box size\" so that we can clearly identify the auto-captured marker points. In the \"Selection Set\", set the \"Pick Box Size\". The larger the pick box, the greater the range that the object capture function can cover, which helps us find feature points more quickly. 2. The precise positioning function of CAD: Once the cursor settings are completed, we can use CAD’s positioning assistance features in the HaoChen CAD software to carry out accurate drawing and efficient design. Polar tracking: By default, the \"Polar Tracking\" function in HaoChen CAD is enabled, guiding the cursor to move horizontally or vertically (at 0 or 90 degrees). Therefore, after specifying the first point, entering the distance in the command line allows for quickly drawing a straight line with an exact length. The lock angle is specified in the command line after the first point is entered when drawing lines during CAD drafting