Chapter 11 Adding Lines and Annotations to an Image132Adding Annotationsand Measuring11.2.3 Setting How to Draw Grid LinesThe [TOOL SET: GRID] screen is used to specify how grid is drawn.• [SETTING MODE] areaSelect a grid drawing method. Select either [DIRECT CLICK]or [INPUT VALUE] by pressing either button.- [DIRECT CLICK]Specify two points on the screen to draw grid lines based onthe width and height between the two points. (The minimumdistance is 20 pixels.)If you want to redraw grid, press the [ERASE] button to clearthe grid lines and specify the two points again.- [INPUT VALUE]Enter the width and height numerically. Choose thereference point either from [TOPLEFT] or [CENTER].• [ERASE] buttonClear the settings of the grid lines. This button appears onlywhen [DIRECT CLICK] is selected.• [WIDTH] input fieldEnter a numerical value for distance between vertical gridlines. Press the input field; the keypad appears. This fieldappears when [INPUT VALUE] is selected.• [HEIGHT] input fieldEnter a numerical value for distance between horizontal gridlines. Press the input field. The keypad appears. This fieldappears when [INPUT VALUE] is selected.Entering valuesWhen you select the input field, a keypad appears. Pressthe numerical keys to enter a desired value and then pressthe [ENTER] button.To erase the entered value, press the [CLR] button. Togo back to the previous character, press the [BS] button.Pressing the [X] button closes the keypad withoutmodifying values.Displaying unitThe unit set in the [TOOL SET: MAIN] screen isdisplayed in the [UNIT] area. When number of digits istoo large to display the value by the unit currentlyselected, the unit to be used is automatically changed.• [REFERENCE POSITION] areaSelect the reference point of grid lines from [TOPLEFT] or[CENTER]. This area appears when [INPUT VALUE] isselected.[TOOL SET: GRID] Screen(Setting by Clicking)[TOOL SET: GRID] Screen(Numerical Input)[ERASE]button[SETTINGMODE] area[WIDTH]field[REFERENCEPOSITION]area[HEIGHT]field[SETTINGMODE] area[UNIT] area
