Hologram Projector
Overview
This block projects a hologram in the area over it. The size of the hologram can be scaled from 1x1x1 block to 9x9x6 blocks. The number of 'voxels' will stay the same, regardless of scale though. It has resolution of 48x32x48 monochrome voxels (they can either be on or off). Each voxel in that 3D array can be set individually. Generated holograms will look like this.
The second tier of the hologram projector is also capable of displaying colored voxels - in three different colors. These colors can be set to any desired value, i.e. the color palette is editable.
The Tier 1 Hologram Projector is crafted using the following recipe:
- 2 x Microchip (Tier 2)
- 2 x Printed Circuit Board
- 2 x Obsidian
- 1 x Diamond (Replaced with a Diamond Chip in 1.6 OC)
- 1 x Glass Pane
- 1 x Glowstone Dust
The Tier 2 Hologram Projector is crafted using the following recipe:
- 2 x Microchip (Tier 3)
- 1 x Glass
- 2 x Printed Circuit Board
- 2 x Obsidian
- 1 x Diamond Block (Replaced with a Diamond in 1.6 OC)
- 1 x Blaze Powder
Component API
Component name: hologram. Callbacks:
clear
clear()
Clears the hologram.
get
get(x:number, y:number, z:number):number
Returns the value at the specified position.
set
set(x:number, y:number, z:number, value:number or boolean)
Set the value for the specified position.
fill
fill(x:number, z:number[, minY:number], maxY:number, value:number)
Fills an interval in the specified column column with the specified value. Will overwrite only the voxels in the interval. If minY is omitted it defaults to 1. The two interval ends are inclusive.
copy
copy(x:number, z:number, sx:number, sz:number, tx:number, tz:number)
Copies an area of columns by the specified translation.
getScale
getScale():number
Returns the current render scale of the hologram.
setScale
setScale(value:number)
Set the render scale. A larger scale consumes more energy. The minimum scale is 0.33, where the hologram will fit in a single block space, the maximum scale is 3, where the hologram will take up a 9x6x9 block space.
getTranslation
getTranslation():number, number, number
Return the current translation offset.
setTranslation
setTranslation(x:number, y:number, z:number)
Set the translation vector. The hologram display will be offset by this vector from its normal location. The maximum allowable translation is a function of tier. Units are the hologram's size, so the distance translated increases and decreases with scale as well.
maxDepth
maxDepth():number
The color depth supported by the hologram.
getPaletteColor
getPaletteColor(index:number):number
Get the hex color defined for the specified value.
setPaletteColor
setPaletteColor(index:number, value:number):number
Set the hex color defined for the specified value.
Examples
Simple example program that allows setting individual voxels:
local component = require("component")
local hologram = component.hologram
local args = {...}
hologram.set(tonumber(args[1]), tonumber(args[2]), tonumber(args[3]), args[4] == "true" or args[4] == "on")Example use (assuming it's saved as holo-set.lua): # holo-set 16 8 20 true
Further examples:
This program generates a heightmap and 'moves' across it over time, creating the effect of a flowing terrain.
This program generates a random heightmap and displays scrolling text above it.
Note, the second example is quite a bit more advanced then the first. Important: both scripts also need the [https://github.com/OpenPrograms/Sangar-Programs/blob/master/noise.lua noise.lua] script to be in the same folder.
Contents
| Blocks | |
|---|---|
| Computers | Computer Case - Server Rack - Microcontrollers |
| Display | Hologram Projector - Keyboard - Screen |
| Power and Networking | Capacitor - Net Splitter - Power Converter - Power Distributor - Relay |
| Extensions | Adapter - Cable - Disassembler - Disk Drive - Geolyzer - Motion Sensor - Redstone I/O - Transposer - 3D Printer |
| Robotics | Assembler - Charger - Drone - Robot - Waypoint |