公开(公告)号：US09224219B2

公开(公告)日：2015-12-29

申请号：US13723907

申请日：2012-12-21

Applicant: CITRIX SYSTEMS, INC.

Inventor： Frederic Mayot

IPC: G06T11/20

CPC classification number: G06T11/203

Abstract: Systems and method for presenting a free-form drawing are described. In some aspects, a first point, a second point, and a third point from an input curve in the free-form drawing are received. A first quadratic Bezier curve is determined, where a control point of the first quadratic Bezier curve includes the second point and endpoints of the first quadratic Bezier curve include the first point and the third point. A first portion of the first quadratic Bezier curve is provided for display, where endpoints of the first portion of the first quadratic Bezier curve include the first point and a second terminal point, and where the first portion of the first quadratic Bezier curve does not include the third point.

Abstract translation: 描述用于呈现自由形状图的系统和方法。 在一些方面，接收自由形式图中的输入曲线的第一点，第二点和第三点。 确定第一二次贝塞尔曲线，其中第一二次贝塞尔曲线的控制点包括第二点，第一二次贝塞尔曲线的端点包括第一点和第三点。 提供第一二次贝塞尔曲线的第一部分用于显示，其中第一二次贝塞尔曲线的第一部分的端点包括第一点和第二终点，并且其中第一二次贝塞尔曲线的第一部分不包括 第三点。

公开(公告)号：US20150058807A1

公开(公告)日：2015-02-26

申请号：US14097320

申请日：2013-12-05

Applicant: Citrix Systems, Inc.

Inventor： Matthew Anderson ,  Frederic Mayot

IPC: G06F3/0482 ,  G06F3/0484 ,  G06F3/0481 ,  G06F3/0488

CPC classification number: G06F3/017 ,  G06F3/04812 ,  G06F3/04817 ,  G06F3/0482 ,  G06F3/04842 ,  G06F3/0488 ,  G06F3/04883 ,  G06Q10/10 ,  G06Q10/101 ,  G06T11/60 ,  G06T11/80 ,  H04L67/1095

Abstract: An improved technique involves embedding a pen selection within a selected color. When a user selects a color for a new stroke by moving a cursor over a color icon, a pen palette appears within the selected color icon. In some arrangements, the improved techniques further involve automatically selecting a pen by default as the previous pen used for that color, so that only a single color selection need be made rather than separate pen and color selections. In this way, the user may then quickly and fluidly select both a color, then a pen for a drawing stroke. Such a color and pen selection process may be seen to simulate the actions in drawing on a whiteboard.

Abstract translation: 一种改进的技术涉及在所选择的颜色内嵌入笔选择。 当用户通过将光标移动到颜色图标上来选择新笔画的颜色时，所选颜色图标中会显示一个笔调色板。 在一些布置中，改进的技术还包括自动选择笔作为用于该颜色的先前笔的笔，使得仅需要进行单个颜色选择而不是单独的笔和颜色选择。 以这种方式，用户可以快速且流畅地选择颜色，然后选择笔用于绘图笔画。 可以看到这样的颜色和笔选择过程来模拟在白板上绘制的动作。

公开(公告)号：US09354707B2

公开(公告)日：2016-05-31

申请号：US14097320

申请日：2013-12-05

Applicant: Citrix Systems, Inc.

Inventor： Matthew Anderson ,  Frederic Mayot

IPC: G06F3/0482 ,  G06F3/01 ,  G06T11/80 ,  G06F3/0481 ,  G06F3/0484 ,  G06F3/0488 ,  H04L29/08 ,  G06Q10/10 ,  G06T11/60

CPC classification number: G06F3/017 ,  G06F3/04812 ,  G06F3/04817 ,  G06F3/0482 ,  G06F3/04842 ,  G06F3/0488 ,  G06F3/04883 ,  G06Q10/10 ,  G06Q10/101 ,  G06T11/60 ,  G06T11/80 ,  H04L67/1095

Abstract: An improved technique involves embedding a pen selection within a selected color. When a user selects a color for a new stroke by moving a cursor over a color icon, a pen palette appears within the selected color icon. In some arrangements, the improved techniques further involve automatically selecting a pen by default as the previous pen used for that color, so that only a single color selection need be made rather than separate pen and color selections. In this way, the user may then quickly and fluidly select both a color, then a pen for a drawing stroke. Such a color and pen selection process may be seen to simulate the actions in drawing on a whiteboard.

Abstract translation: 一种改进的技术涉及在所选择的颜色内嵌入笔选择。 当用户通过将光标移动到颜色图标上来选择新笔画的颜色时，所选颜色图标中会显示一个笔调色板。 在一些布置中，改进的技术还包括自动选择笔作为用于该颜色的先前笔的笔，使得仅需要进行单个颜色选择而不是单独的笔和颜色选择。 以这种方式，用户可以快速且流畅地选择颜色，然后选择笔用于绘图笔画。 可以看到这种颜色和笔选择过程来模拟在白板上绘制的动作。

公开(公告)号：US20150058753A1

公开(公告)日：2015-02-26

申请号：US14091944

申请日：2013-11-27

Applicant: Citrix Systems, Inc.

Inventor： Matthew Anderson ,  Frederic Mayot

IPC: G06F3/01

CPC classification number: G06F3/017 ,  G06F3/04812 ,  G06F3/04817 ,  G06F3/0482 ,  G06F3/04842 ,  G06F3/0488 ,  G06F3/04883 ,  G06Q10/10 ,  G06Q10/101 ,  G06T11/60 ,  G06T11/80 ,  H04L67/1095

Abstract: An improved technique involves providing for a gesture-based undo command for use within a collaborative drawing environment. Such an undo function that is both gesture-based and capable of being used within a collaborative environment takes full advantage of the capabilities of tablet computers and laptop computers having touch screens. The gesture-based undo command may involve a multi-point linear swipe such as a two-point linear swipe gesture in order to easily distinguish an undo command from a drawing command.

Abstract translation: 改进的技术涉及提供用于在协作绘图环境中使用的基于手势的撤销命令。 这种基于手势和能够在协作环境中使用的撤消功能充分利用具有触摸屏的平板电脑和膝上型计算机的能力。 基于手势的撤销命令可以涉及多点线性滑动，例如两点线性滑动手势，以便容易地将撤销命令与绘图命令区分开。