Utils for TinyWorld

JRE distros

Supported JRE distributions are stored in Release. They are used to build the portable and AppImage packages of TinyWorld.

ImageMagick with HEIF/HEIC support

Linux x64/arm64 and Windows x64 static binaries of ImageMagick 7.1.0 with HEIF/HEIC support can be found in Release section.

Currently, TinyWorld only relies on ImageMagick for thumbnails generation from HEIF photos.

Linux build

Linux binary has been compiled from source as existing packages do not come with HEIC support.

Instructions to build static binary:

# Install libs for HEIF (HEIC) support
$ sudo apt install libjpeg-dev libheif-dev libheif1

# Clone latest tag
$ git clone --depth 1 --branch 7.1.0-46 https://github.com/ImageMagick/ImageMagick.git
$ cd ImageMagick

# Configure build to generate static binaries. Enable HEIC support
$ ./configure --enable-static=yes --enable-shared=no --prefix=/usr --with-jpeg=yes --with-heic=yes --without-magick-plus-plus --without-perl --with-quantum-depth=16

# Compile
$ make

# Install in a temporary folder
$ mkdir -p /tmp/MyIM
$ make install DESTDIR=/tmp/MyIM

# Check HEIC support is enabled
# Make sure both 'jpeg' and 'heic' are listed in 'Delegates (built-in)'
$ cd /tmp/MyIM/usr/bin
$ ./magick -version
Version: ImageMagick 7.1.0-46 Q16-HDRI x86_64 5ef3d4d66:20220816 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP(4.5)
Delegates (built-in): bzlib djvu fontconfig freetype gvc heic jbig jng jpeg lcms lqr lzma openexr pangocairo png raqm raw tiff webp x zip zlib
Compiler: gcc (11.2)

Generate thumbnail from HEIF photo

# Generate a 160x160 thumbnail
magick <your HEIF file> -thumbnail 160x160 jpg:<your thumbnail name>.jpg

WorlWind Cache for TinyWorld

This repo hosts a NASA WorldWind cache to use as a starter on any WorldWind-based application, e.g. TinyWorld. It helps to get first tiles, all the most if you don't have a good Internet connection.

The cache is available for several tiles format:

• DDS
• JPEG and PNG (depends on the layer)

For each layer, tiles format is defined via the ImageFormat tag in the corresponding layer's config file (e.g. of layers' config files: Earth/BMNGWMSLayer2.xml, Earth/LandsatI3WMSLayer2.xml).

The data is provided compressed in the Release section.