# nip2

**Repository Path**: yafacecatkin/nip2

## Basic Information

- **Project Name**: nip2
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-11-30
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# nip2 - a user interface for the VIPS image processing library

[![Snap
Status](https://build.snapcraft.io/badge/jcupitt/nip2.svg)](https://build.snapcraft.io/user/jcupitt/nip2)

nip2 is a GUI for the [VIPS image processing 
library](https://libvips.github.io/libvips). It's a little like a spreadsheet:
you create a set of formula connecting your objects together, and on a change
nip2 recalculates.

You can probably install nip2 via your package manager. For
Windows and OS X, you can download a binary from the [nip2 releases
area](https://github.com/libvips/nip2/releases). Only read on if you want to
compile yourself from source.

# Documentation

nip2 comes with a 50-page manual --- press F1 or Help / Contents in the
program to view it.

# Building nip2 from source

In the nip2 directory you should just be able to do:

	$ ./configure
	$ make
	$ sudo make install

By default this will install files to `/usr/local`.

See the Dependencies section below for a list of the things that
nip2 needs in order to be able to build.

If you downloaded from GIT you'll need:

	$ ./autogen.sh

first to build the configure system. 

# Dependencies

nip2 needs vips, gtk2 and libxml2 at runtime and flex/bison at compile time.

If you have fftw3, gsl, goffice, libgvc you get extra optional, but useful,
features. 

# Tips 

production build with

	./configure --prefix=/home/john/vips 

debug build with

	CFLAGS="-g -Wall" ./configure --prefix=/home/john/vips 

(--enable-debug turns on and off automatically with development / production
minor version numbers)

leak check

	export G_DEBUG=gc-friendly 
	export G_SLICE=always-malloc 
	valgrind --suppressions=/home/john/nip2.supp \
	  --leak-check=yes \
	  nip2 ... > nip2-vg.log 2>&1

memory access check

	valgrind --suppressions=/home/john/nip2.supp \
	  --leak-check=no --db-attach=yes \
	  nip2 ... > nip2-vg.log 2>&1

or put "--suppressions=/home/john/nip2.supp" into ~/.valgrindrc 

profiling

	valgrind --tool=callgrind \
	  --suppressions=/home/john/nip2.supp \
	  nip2 ... > nip2-vg.log 2>&1

Disclaimer: No guarantees of performance accompany this software, nor is any
responsibility assumed on the part of the authors. Please read the licence
agreement.

# snapcraft

Rebuild snap with:

	snapcraft cleanbuild 

Though it's done automatically on a push.