![]() ❋ Scope of application: The sensor of the smart portable whiteboard is suitable for all surfaces.The infrared pen can be used as a computer cursor or drawing/writing tool. It only takes a few minutes to complete the setup and discuss or demonstrate in the new environment. It is lightweight and can be carried at any time. After downloading and installing the required software, connect the sensor to the computer to quickly calibrate. ❋ Lightweight and portable: The interactive whiteboard is suitable for all types of projectors.❋ 360 degree no dead angle: This portable whiteboard can flexibly adjust the angle of 360 degrees (no dead angle), which solves the problems of inconvenient, time-consuming and labor-consuming positioning of the original short-distance portable IWB, and provides you with a more comfortable experience.It can draw or annotate teaching materials directly on the projection surface. After successful installation, you can project it on any plane. After inserting the U disk, copy the software installation package to the computer desktop and decompress the installation software. ❋ Working principle: The working principle of the interactive smart whiteboard is to connect the computer, the sensor and the data cable, the projector, and the interactive pen successfully.Remember to stay safe while using the internet, as we cannot guarantee the safety of other websites. This section has links to websites or programs not trusted by Scratch or hosted by Wikipedia. And a few scripts may create an image editor that can save the image you have drawn to a list. However, lower resolution images can be created by tweaking the scripts, and it will require less items for the list. Of course you are going to have to make a list or variable to contain all the colors, and it's going to have to be 172,800 colors long. Set pen (color v) to (temporary) // Set the pen color to what it's meant to be from the variable ![]() Set to (join (temporary) (letter (repeater) of (variable)) ![]() Set to (join (temporary) (letter ((repeater) - (1)) of (variable)) Set to (letter ((repeater) - (2)) of (variable) Set to // A temporary variable creating the color from the variable Set x to (-240) // Back at the far left of the screenĬhange by (3) // Change our variable by 3 (length of 200, the max color) Set pen (color v) to (item (repeater) of ) // Set the pen color to what it's meant to be from the list Set pen size to (2) // Set the size to 2 to avoid a Flash Player glitchĬhange by (1) // Change our variable by 1 Set to (0) // Our variable keeps track of which item to pick on the color list A script that could use the custom block to draw a picture may look like this: When you create a custom block, select the checkbox labelled "run without screen refresh". Run without screen refresh is a custom block operation that is used to speed up actions by refreshing the screen only after the operation has finished. Use Of "Run Without Screen Refresh" Custom Block Main article: Render Script If any of these might be fractions, use the following code instead: Make sure the A, R, G, and B values are whole numbers (rounded) so they don't contribute to other colors' values. Set pen color to ((((R) * (65536)) + ((G) * (256))) + (B)) // Be sure to use the pen color block with the color input (like the one below), or the colors will not function properly. Alpha is identified by a number 1-255, where 1 is completely transparent and 255 is opaque. The formula for ARGB is similar to that of RGB (red, green, and blue), but it has an additional value, Alpha (A) for opacity. Alternatively, it is possible to use a RGBA color as an input to the Set Pen Color to () block, as described below. Pen Transparency can be changed using the set pen (transparency v) to () block.
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