Components are reusable software modules oriented to software architecture. It is a reusable software component that can be used to construct other software. It can be encapsulated object classes, class trees, some functional modules, software frameworks, software architecture (or architecture), documents, analysis pieces, design patterns, etc. In 1995, Ian Graham gave the definition of component as follows: component refers to an object (interface specification, or binary code), which is used for reuse, and the interface is clearly defined. Hainan sculpture component appears as a logic tight program code package with a good interface. For example, Ada's Package, Smalltalk-80 and C++'s class and data type can all belong to the component category. However, the operation set, procedure and function can not become a component even if they can be reused. Developers can develop new application systems by assembling existing components, so as to achieve the purpose of software reuse. Software component technology is the key factor of software reuse, and also the focus of software reuse technology research.
The traditional method is to brush lime water or wall powder, but it is easy to be polluted and cannot be scrubbed with wet method. It is mostly used for general buildings. More advanced buildings use flat ready mixed paint as decoration material, which is rich in color and is not easy to be polluted, but the volatile amount of organic solvent mixed in is large, which pollutes the atmosphere and affects the health of construction personnel. With the development of science, organic synthetic resin raw materials are widely used in paint, making the appearance of paint products fundamentally changed, so it is called paint, It has become an important interior and exterior wall decoration material. There is a long history of papering interior walls and ceilings, but it has been replaced by plastic wallpaper and fiberglass wall covering. Hainan sculpture gypsum board has the characteristics of fire prevention, sound insulation, heat insulation, light weight and high strength, and convenient construction, which is mainly used for walls and flat roofs; When making a flat roof, holes with various patterns can be punched to improve the sound absorption and decoration effect. Calcium plastic board has a good decorative effect, can keep warm and sound, and is a multi-functional board. Marble and granite plates are increasingly used to decorate high-end hotels and apartments.
Button carving refers to the carving of the buttons on the upper part of the seal. It belongs to the category of round carving and has a rich three-dimensional sense. However, compared with round carving, it has three significant characteristics. First, the image is small, limited to the size of the seal, which is generally less than 10 cubic centimeters; The second is to show only the upper part of the object, rather than the round sculpture, which needs all-round performance; In addition, the performance content of button carving is mostly animals, especially animals in ancient legends, such as chi, lion, dragon, tiger, exorcism, taotie, etc. Therefore, button carving is also called "animal button". The history of button carving is linked with seals. Only seals can make buttons. According to relevant historical research, the earliest seal started in the Zhou Dynasty, more than 3000 years ago. The original seal is a symbol of power and status, and is a special item for princes, generals and ministers, and Dada dignitaries. The original seal button was also very simple and simple, just drilling a small hole on the top of the seal to wear strong ties for carrying, so the seal button is also called "seal nose". With the continuous development of history, a strict hierarchy has emerged in the materials and buttons of seals according to the different positions and official titles of users. For example, the official seal of the Qin Dynasty, in addition to using gold, silver, copper and other materials to distinguish the level of the official seal, also distinguishes the decoration of the button. In the Han Dynasty, the emperor used tiger buttons with jade seals, the crown prince, the lieutenants, the prime minister, the lieutenant, the sangong, and the left and right generals used gold seal tortoise buttons, and the officials of the two thousand stone Dai Lu used bronze seal elephant buttons Since then, the buttons used by all dynasties, from the monarch down to the officials of various products, were mostly chi, lion, dragon, phoenix, tiger, exorcism, taotie, unicorn, camel, bird, claw, bear, bat and other animals in the zodiac, depending on their positions.
Microcarvings pay special attention to the selection of materials. The stone material should be absolutely pure, and there should be no sand grid or half silk cracks, because half a sand dot may damage a fine picture or more than 10 Chinese characters. Secondly, the micro carving knife is also a special thin knife, which should be sharp and sharp. It is necessary to have a particularly proficient knowledge of calligraphy and traditional Chinese painting. When carving, "meaning carving" and "meaning carving" can be carried out. Hold your breath and concentrate on your thoughts on the spot. The knife should be stable, accurate and ruthless. The micro carved knife is just a pen. The skill is not enough. Because the knife is slightly out of control, it doesn't reach its purpose. The calligraphy effect must be paid attention to when matching the micro engraving inscriptions on the micro sculpture works. The creators should avoid the ugly appearance, the skew of characters, the uneven lines, the inaccuracy of paintings, and the imbalance of matching. We should grasp the artistic effect of the line changes produced by cutting tools and customized stones. Only in this way can calligraphy and knife techniques and strokes be perfectly unified.
Exterior wall decorative panel is a new type of integrated material for building exterior wall decoration and insulation developed in recent years, which is composed of polyester baking paint or fluorocarbon paint, carved aluminum zinc alloy steel plate, polyurethane insulation layer and glass fiber cloth; It is mainly used for exterior wall decoration and energy-saving reconstruction of gymnasiums, libraries, school and hospital office buildings, villas and other buildings; The main functions are building decoration, heat preservation, energy conservation, heat insulation, sound insulation, waterproof and mildew proof. The metal surface decorative insulation board is a large external hanging wall board produced in industrialization. It has good durability and low maintenance cost due to dry installation construction. It integrates the external wall insulation and decoration functions, conforms to the development direction of building energy conservation "modularization" technology, and is an advanced technology vigorously promoted in the field of external temperature protection technology of building walls in China.
Micro carving is a kind of carving technique that is good at small and fine. Chinese micro sculpture has a long history. Miniature carvings appeared in oracle bone inscriptions as far back as the Shang Dynasty. During the Warring States Period, the seal was as small as millet, but the seal was divided into white and black. Wang Shuyuan's Nuclear Boat Story, which is widely known, is also a classic work of micro sculpture in Chinese history. The art of seal cutting is the basis for the emergence and development of micro carving art. Since the Ming and Qing Dynasties, many literati and scholars have used iron pen to write and paint in the seal, to express their interest and entertain themselves. After Shoushan Stone became the seal material, the micro carving art of Shoushan Stone began to appear. In the early Qing Dynasty, both Yang Xuan and Diaobin used to carve small characters in the remote patterns of Shoushan stone carvings, and Lin Qingqing, a master sculptor of the "Ximen Boyi School", also used to carve in the grass high quality Colored sculpture In the cracks of the stone, his name and the date of making were engraved with a very fine pen. Later, some people carved ancient poems on the four sides of the square pillar of the seal with very fine words. In the 1960s, with the application of advanced scientific instruments such as magnifiers in the field of micro sculpture, micro sculpture art became a new and unique art. The words carved in the works are smaller and smaller, and the content is more and more. Microcarvings pay special attention to the selection of materials. The texture of the Hainan EPS component stone is required to be absolutely pure, and there should be no sand grid and half silk cracks, because half of the sand dot may be engraved with more than 10 Chinese characters. Secondly, the micro carving knife is also a special thin knife, which should be sharp and sharp. Third, it is necessary to have a particularly proficient knowledge of calligraphy and traditional Chinese painting. When carving, you can carry out "free engraving". Fourth, hold your breath and concentrate on your thoughts on the spot. Fifth, the knife should be handled steadily, accurately and ruthlessly. Only in this way can calligraphy and knife technique be perfectly unified. The art of micro sculpture is "art in micro". The more subtle it is, the more refined its kungfu is, and the higher its value is. Colored sculpture manufactor Microcarving is also an art that pays great attention to the picture and organization, which is "intended to be refined". The sculptor of micro sculpture should first have a deep knowledge of calligraphy and painting. Although the micro sculpture is too small to be recognized with the naked eye, it is still very exquisite under the magnifying glass, such as large calligraphy works.