直接绘制

Based on a graphical stability criterion in parameter space, the range of proportional-gain is given. For both stable and unstable open-loop plants, the stabilizing region in integral derivative space is plotted and determined directly, not to be calculated mathematically.

基于参数空间的图解稳定性准则，在已知比例增益范围的前提下，针对稳定和不稳定开环对象，直接在积分－微分参数空间绘制和确定稳定区域，避免了复杂的数学计算。

Using the three ways of Excel,Autoslip program, block ,this article aims at inquiring into precise drawing of parametric curves and exploring operation procedures of simpler and easier learning.

AutoCAD有很强的二维绘图功能，但无法直接画出精确的渐开线，运用Excel、Autolisp程序、图块三种途径，旨在探讨渐开线的精确绘制，并寻求更为简便易学的操作步骤。

The configuration of mechanism being simulated was plotted in the mode of 3D entity, displayed simultaneously on front view, top view and southeast axonometric drawing and being able to make direct inspections on its configuration parameters by the use of CAD commands.

模拟出的机构位形以三维实体方式绘制、同时在主视图、俯视图和东南轴测图中显示并可以用AutoCAD命令对其位形参数直接检验。

In the case of study, the better fittable algorithm of volume visualization is selected in accordance with the analysis of the software.

三维可视化是科学计算可视化和三维GIS密切联系的纽带，本文综述该方面的发展趋势，研究了两大类三维数据场可视化算法：表面拟合方法(Surface-fitting method)和直接体绘制(Direct Volume Rendering，DVR)。

Analyses the air handling process of cold air distribution system with outdoor air introduced to machine room directly or after being handled to the state of indoor air enthalpy.Presents in detail the drawing steps of the air state points in psychrometric chart for the air conditioning unit with blowing-through type fan.

分析了低温送风空调系统在新风直接引入和新风集中处理至室内空气状态点的等比焓线后引入空调机房两种情况下的空气处理过程，详细给出了空调器采用压出式风机配置时的焓湿图绘制步骤。

The algorithm is applied in the segmentation of Magnetic Resonance Imaging of human brain for the 3D reconstruction on dependent of different human tissue structures, in which the problem on wraps between different tissues and fuzzy edges between the different regions in medical volume data may better be settled, which can not be well done by the typical"hard"segmentation using binary logical representation.(3) An accelerated algorithm of volume rendering with X-ray perspective and Phong shading effect based on textures mapping and blending is presented for realizing 3D reconstruction of medical volume data by 2D texture mapping and blending, in which the accelerated algorithm of window transformation is utilized to computing voxels' gray scales and opacities to produce X-ray perspective images, and Phone illumination model is used to import world light sources and an unit spherical surface under the same shading environment as the actual volume rendering is employed to simulate the real reflectional light of per-voxel so that 3D reconstruction possesses illumination effect in the world. Furthermore, 3D matrix transformations of degree rotation and other operations of 3D object are studied, and a fast equivalent method of corresponding shading correction is brought forward to improve its interaction speed in volume rendering process.

该方法利用体数据的窗口变换加速算法将医学体数据转换为计算机显示值，可以得到具有X光透视效果三维图像；该方法提出的Phong明暗处理加速算法利用Phong光照模型引入外部光源，使用一单位球面体来仿真体数据的法线矢量集所产生的反射光强，以快速得到每一个体素的反射光强度，使物体的三维重建达到现实世界中人眼直接观察的逼真效果；此外，还研究了三维重建物体的三维旋转等矩阵变换，提出了一种Phong明暗修正的快速算法来保证了体绘制中三维几何变换的多视角观察的交互速度。

In practice, we often need observe characteristic curves of all apparatus. These curves are hardly drawed by hand directly, but using MATLAB protracts the curves rapidly and briefly.

在实际中，我们常常需要观察各种器件特性曲线，这些曲线很难用手直接画出，利用 MATLAB 则可以较快捷，简单的绘制这些曲线。

Direct Volume Rendering is one of the most important techniques for visualizing medical volume data.

直接体绘制技术是医学可视化中最重要的成像技术之一。

The software plots the waves,formants,and some other basic feature...

软件在屏幕上绘制出语音的波形，共振峰等图形，可以更直接的反映出被比较的两个语音间的差别。

Different from several forme paints,I begin the formal paint directly without the process of painting the conceptual sketch,when I got enough inspiration.

与先前几张创作不同，当捕捉到足够的灵感后，我省略了绘制概念色稿的过程，直接入画。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。