From patchwork Mon Jul 6 12:35:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lespiau, Damien" X-Patchwork-Id: 6723401 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id F2523C05AC for ; Mon, 6 Jul 2015 12:36:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2B45320600 for ; Mon, 6 Jul 2015 12:36:06 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 1621C2062F for ; Mon, 6 Jul 2015 12:36:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7D26C6E880; Mon, 6 Jul 2015 05:36:03 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 84F4D6E87A for ; Mon, 6 Jul 2015 05:36:02 -0700 (PDT) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP; 06 Jul 2015 05:36:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,414,1432623600"; d="scan'208";a="741421100" Received: from magarwal-mobl.amr.corp.intel.com (HELO strange.amr.corp.intel.com) ([10.254.77.111]) by fmsmga001.fm.intel.com with ESMTP; 06 Jul 2015 05:36:01 -0700 From: Damien Lespiau To: intel-gfx@lists.freedesktop.org Date: Mon, 6 Jul 2015 13:35:44 +0100 Message-Id: <1436186144-19665-17-git-send-email-damien.lespiau@intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1436186144-19665-1-git-send-email-damien.lespiau@intel.com> References: <1436186144-19665-1-git-send-email-damien.lespiau@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 16/16] plot: Add an example of the plotting API X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Unfortunately, I didn't manage to make the image inclusion work... Signed-off-by: Damien Lespiau --- lib/igt_plot.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/lib/igt_plot.c b/lib/igt_plot.c index b3d4bc7..bc7bce1 100644 --- a/lib/igt_plot.c +++ b/lib/igt_plot.c @@ -43,7 +43,34 @@ * @include: igt_plots.h * * A drawing is better than a long speech. Plotting data can reveal surprises - * and the igt_plot_t object let you do just that. + * and igt_plot_t lets you do just that. + * + * To draw a plot, one needs to populate 2 #igt_vector_t for the X and Y axis + * and draw the result. + * + * |[ + * static double f(double x) + * { + * return sin(2 * M_PI * x); + * } + * + * void draw_plot(void) + * { + * igt_vector_t *x, *y; + * igt_plot_t plot; + * + * x = igt_vector_linear(-1.0, 1.0, 200); + * y = igt_vector_map(x, f); + * + * igt_plot_init(&plot, 800, 600); + * igt_plot_set_title(&plot, "f(x) = sin(2?x)"); + * igt_plot_axis_set_title(&plot.x_axis, "x"); + * igt_plot_axis_set_title(&plot.y_axis, "f(x)"); + * igt_plot_set_color(&plot, 0.0, 0.0, 1.0, 1.0); + * igt_plot_draw(&plot, x, y); + * igt_plot_write(&plot, "test_simple_plot.png"); + * } + * ]| */ /* snap to pixel */